1. Division of Clinical Neurophysiology and Epilepsy, University Children's Hospital, Zurich, Switzerland
2. Department of Pediatric Neurology and Developmental Medicine, University Children's Hospital, Tubingen, Germany
3. Department of Pediatrics, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany
4. Department of Neuropediatrics and Muscular Diseases, Centre of Pediatrics and Adolescent Medicine, University Medical Centre, Freiburg, Germany
5. St. Bonifatius Hospital Lingen, Children's Hospital, Lingen, Germany
6. Center for Pediatric and Teenage Health Care, Child Neurology, Sankt Augustin, Germany
7. Department of Pediatric Neurology, Vivantes Hospital Neukölln, Berlin, Germany