1. School of Medicine, Social Pediatrics, Technical University of Munich, Munich, Germany
2. kbo-Kinderzentrum München, Munich, Germany
3. Behandlungszentrum Aschau, Aschau im Chiemgau, Germany
4. Department of Pediatric Neurology and Developmental Medicine, Hauner Children’s Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
5. Center of Vertigo and Balance Disorders, IFBLMU, Ludwig-Maximilians-University Munich, Munich, Germany