1. Department of Neurology, Ludwig-Maximilians-University, Munich, Germany
2. Department of Paediatric Neurology and Developmental Medicine, Hauner Children's Hospital, Ludwig-Maximilians-University, Munich, Germany
3. Department of Neurology, Friedrich-Baur-Institute, Ludwig-Maximilians-University, Munich, Germany
4. Department of Paediatrics, St Vincenz Hospital Paderborn, Paderborn, Germany