1. Department of Neuropediatrics and Muscle Disorders; University Children's Hospital; Freiburg; Germany
2. MEG-Center; University of Tübingen; Tübingen; Germany
3. Department of Pediatric Neurology and Developmental Medicine; University Children's Hospital; Tübingen; Germany
4. Institute of Clinical Radiology; Ludwig-Maximilians-University; München; Germany
5. Social Pediatrics and Developmental Medicine; Klinikum Rechts der Isar; Technical University München; München; Germany