1. Department of Paediatric Neurology and Developmental Medicine, Hauner Children's Hospital, University of Munich, Munich, Germany
2. Department of Paediatrics, St. Vincenz Hospital Paderborn, Paderborn, Germany
3. Department of Neuropaediatrics, Olgahospital, Stuttgart, Germany
4. Institute of Clinical Radiology, Klinikum Grosshadern, Medical Faculty, Ludwig-Maximilians-University Munich, Munich, Germany