1. Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, Germany
2. Institute of Social Paediatrics and Adolescent Medicine, Ludwig-Maximilians-University Munich, Germany
3. Department of Neurology, Klinikum Grosshadern, Ludwig-Maximilians-University Munich, Germany
4. Integrated Center for Research and Treatment of Vertigo, Balance and Ocular Motor Disorders (IFBLMU), University Hospital Munich, Ludwig-Maximilians-University Munich, Germany
5. Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-University Munich, Germany