Temporal Dynamics of MOG Antibodies in Children With Acquired Demyelinating Syndrome.
| Title: | Temporal Dynamics of MOG Antibodies in Children With Acquired Demyelinating Syndrome. |
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| Authors: | Wendel EM; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Thonke HS; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Bertolini A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Baumann M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Blaschek A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Merkenschlager A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Karenfort M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Kornek B; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Lechner C; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Pohl D; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Pritsch M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Schanda K; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Schimmel M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Thiels C; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Waltz S; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Wiegand G; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Anlar B; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Barisic N; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Blank C; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Breu M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Broser P; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Della Marina A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Diepold K; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Eckenweiler M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Eisenkölbl A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Freilinger M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Gruber-Sedlmayr U; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Hackenberg A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Iff T; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Knierim E; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Koch J; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Kutschke G; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Leiz S; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Lischetzki G; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Nosadini M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Pschibul A; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Reiter-Fink E; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Rohrbach D; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Salandin M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Sartori S; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Schlump JU; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Stoffels J; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Strautmanis J; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Tibussek D; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Tüngler V; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Utzig N; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Reindl M; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany.; Rostásy K; From the Department of Pediatric Neurology (E.M.W.), Olgahospital/Klinikum Stuttgart; Department of Pediatric Neurology (H.S.T., A. Bertolini, K.R.), Witten/Herdecke University, Datteln, Germany; Department of Pediatric I (M. Baumann, C.L.), Pediatric Neurology, Medical University of Innsbruck, Innsbruck, Austria; LMU Klinikum (A. Blaschek), Hauner Children´s Hospital, Munich; Division of Pediatric Neurology (A.M.), Department of Pediatrics, Medical University of Leipzig; Department of General Pediatrics (M.K.), Neonatology and Pediatric Cardiology, University Childrens Hospital, Heinrich-Heine- University Duesseldorf, Germany; Department of Neurology (B.K.), Medical University Vienna, Austria; Department of Neurology (D.P.), Children's Hospital of Eastern Ontario, University of Ottawa, Canada; Department of Neuropediatrics (M.P.), Children's Hospital DRK Siegen, Germany; Clinical Department of Neurology (K.S., M.R.), Medical University of Innsbruck, Austria; Division of Pediatric Neurology (M. Schimmel), Childrens Hospital, Medical University of Augsburg; Department of Neuropediatrics and Social Pediatrics (C.T.), University Hospital for Children and Adolescent Medicine, Ruhr-University Bochum; Division of Neuropediatrics and Social Pediatrics (S.W.), Childrens Hospital, Cologne; Division of Pediatric Neurology (G.W.), Department of Pediatrics, Asklepios Klinik Nord, Heidberg, Germany; Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Pediatrics (N.B.), University Hospital Zagreb, Medical University Zagreb, Croatia; Department of Pediatric Neurology (C.B.), Kinderkrankenhaus St. Marien gGmbH, Landshut, Germany; Division of Pediatric Pulmonology (M. Breu), Allergology and Endocrinology, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna; Department of Pediatric Neurology (P.B.), Ostschweizer Kinderspital, St. Gallen, Switzerland; Department of Pediatric Neurology (A.D.M.), Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen; Department of Pediatric Neurology (K.D.), Children's Hospital Kassel; Department of Neuropediatrics and Muscle Disorders (M.E.), Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Department of Paediatrics and Adolescent Medicine (A.E.), Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria; Department of Pediatric and Adolescent Medicine (M.F.), Medical University Vienna, Austria; Department of Pediatrics (U.G.-S.), LKH Medical University Graz, Austria; Department of Pediatric Neurology (A.H.), University Children's Hospital, University of Zurich; Zentrum für Kinderneurologie AG (T.I.), Zurich, Schwitzerland; Charité Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Neurology, Germany; Department of Pediatrics (J.K.), Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria; Division of Pediatric Neurology (G.K.), Department of Pediatrics, Caritas-Hospital Bad Mergentheim, Germany; Department of Pediatrics and Adolescent Medicine (S.L.), Hospital Dritter Orden, Munich, Germany; Department of Pediatric Neurology (G.L.), Children's Hospital Altona, Hamburg, Germany; Paediatric Neurology and Neurophysiology Unit (M.N., S.S.), Department of Women's and Children's Health, University Hospital of Padova, Italy; Neuroimmunology Group (M.N., S.S.), Paediatric Research Institute 'Città della Speranza,' Padova, Italy; Department of Neuropediatrics and Muscle Disorders (A.P.), University Medical Center, Faculty of Medicine, University of Freiburg, Germany; Medical University of Vienna (E.R.-F.), Department of Pediatrics; Department of Neuropediatrics (E.R.-F.), St. Anna Children`s Hospital; Department of Social Medicine (D.R.), Donauspital, Vienna, Austria; Department of Pediatrics (M. Salandin), Division of Pediatric Neurology, Hospital Bozen, Italy; Department of Pediatrics (J.-U.S.), Division of Pediatric Neurology, Gemeinschaftskrankenhaus Herdecke, Medical University Witten, Herdecke, Germany; Department of Pediatrics (J. Stoffels), Division of Neuropediatrics, KJF Klinikum Josefinum, Augsburg, Germany; Neurology Department of Children's University Hospital (J. Strautmanis), Riga Stradins University, Riga, Latvia; Center for Pediatric and Teenage Health Care (D.T.), Child Neurology, Sankt Augustin, Germany; Department of Neuropediatrics (V.T.), University Hospital Carl Gustav Carus, Technische Universität Dresden; and Department of Pediatric Neurology (N.U.), Children's Hospital, Medical University Greifswald, Germany. k.rostasy@kinderklinik-datteln.de. |
| Corporate Authors: | BIOMARKER Study Group |
| Source: | Neurology(R) neuroimmunology & neuroinflammation [Neurol Neuroimmunol Neuroinflamm] 2022 Oct 13; Vol. 9 (6). Date of Electronic Publication: 2022 Oct 13 (Print Publication: 2022). |
| Publication Type: | Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: Wolters Kluwer Health/Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 101636388 Publication Model: Electronic-Print Cited Medium: Internet ISSN: 2332-7812 (Electronic) Linking ISSN: 23327812 NLM ISO Abbreviation: Neurol Neuroimmunol Neuroinflamm Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Baltimore, MD : Wolters Kluwer Health/Lippincott Williams & Wilkins, [2014]- |
| MeSH Terms: | Encephalomyelitis, Acute Disseminated* ; Neuromyelitis Optica* ; Optic Neuritis*; Humans ; Immunoglobulin G ; Myelin-Oligodendrocyte Glycoprotein ; Neoplasm Recurrence, Local ; Prospective Studies ; Syndrome |
| Abstract: | Background and Objective: The spectrum of myelin oligodendrocyte glycoprotein (MOG) antibody-associated disorder (MOGAD) comprises monophasic diseases such as acute disseminated encephalomyelitis (ADEM), optic neuritis (ON), and transverse myelitis and relapsing courses of these presentations. Persistently high MOG antibodies (MOG immunoglobulin G [IgG]) are found in patients with a relapsing disease course. Prognostic factors to determine the clinical course of children with a first MOGAD are still lacking. The objective of the study is to assess the clinical and laboratory prognostic parameters for a risk of relapse and the temporal dynamics of MOG-IgG titers in children with MOGAD in correlation with clinical presentation and disease course.; Methods: In this prospective multicenter hospital-based study, children with a first demyelinating attack and complete data set comprising clinical and radiologic findings, MOG-IgG titer at onset, and clinical and serologic follow-up data were included. Serum samples were analyzed by live cell-based assay, and a titer level of ≥1:160 was classified as MOG-IgG-positive.; Results: One hundred sixteen children (f:m = 57:59) with MOGAD were included and initially diagnosed with ADEM (n = 59), unilateral ON (n = 12), bilateral ON (n = 16), myelitis (n = 6), neuromyelitis optica spectrum disorder (n = 8) or encephalitis (n = 6). The median follow-up time was 3 years in monophasic and 5 years in relapsing patients. There was no significant association between disease course and MOG-IgG titers at onset, sex, age at presentation, or clinical phenotype. Seroconversion to MOG-IgG-negative within 2 years of the initial event showed a significant risk reduction for a relapsing disease course. Forty-two/one hundred sixteen patients (monophasic n = 26, relapsing n = 16) had serial MOG-IgG testing in years 1 and 2 after the initial event. In contrast to relapsing patients, monophasic patients showed a significant decrease of MOG-IgG titers during the first and second years, often with seroconversion to negative titers. During the follow-up, MOG-IgG titers were persistently higher in relapsing than in monophasic patients. Decrease in MOG-IgG of ≥3 dilution steps after the first and second years was shown to be associated with a decreased risk of relapses. In our cohort, no patient experienced a relapse after seroconversion to MOG-IgG-negative.; Discussion: In this study, patients with declining MOG-IgG titers, particularly those with seroconversion to MOG-IgG-negative, are shown to have a significantly reduced relapse risk.; (Copyright © 2022 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.) |
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| Grant Information: | P 32699 Austria FWF_ Austrian Science Fund FWF |
| Contributed Indexing: | Investigator: I El Naggar |
| Substance Nomenclature: | 0 (Immunoglobulin G); 0 (Myelin-Oligodendrocyte Glycoprotein) |
| Entry Date(s): | Date Created: 20221013 Date Completed: 20221017 Latest Revision: 20250825 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC9562044 |
| DOI: | 10.1212/NXI.0000000000200035 |
| PMID: | 36229191 |
| Database: | MEDLINE |
Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't