1. Department of Pediatrics Faculty of Medicine and University Hospital Cologne, University of Cologne Cologne Germany
2. Department of Neurology Charité University Medicine Berlin Berlin Germany
3. Institute of Medical Statistics and Computational Biology, Faculty of Medicine and University Hospital Cologne University of Cologne Cologne Germany
4. Department of Neurology Munich Municipal Hospital Bogenhausen Munich Germany
5. Department of Neurosurgery Charité University Medicine Berlin Germany
6. Department of Neuropediatrics and Muscle Disorders University Medical Center, Faculty of Medicine, University of Freiburg Freiburg Germany
7. Department of Stereotactic and Functional Neurosurgery University Medical Center, Faculty of Medicine, University of Freiburg Freiburg Germany
8. Center for Deep Brain Stimulation University Medical Center Freiburg Germany
9. Department of Neurosurgery Hannover Medical School Hannover Germany
10. Clinic for Pediatric Kidney, Liver and Metabolic Diseases Hannover Medical School Hannover Germany
11. Department of Pediatrics University Children's Hospital Wuerzburg Germany
12. Department of Neurology University Hospital Würzburg Würzburg Germany
13. Department of Stereotactic and Functional Neurosurgery University Hospital Würzburg Würzburg Germany
14. Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty Heinrich Heine University Düsseldorf Düsseldorf Germany
15. Department of Neurology, Medical Faculty Heinrich Heine University Düsseldorf Düsseldorf Germany
16. Department of Functional Neurosurgery and Stereotaxy, Medical Faculty Heinrich Heine University Düsseldorf Düsseldorf Germany
17. Institute for Neuromodulation and Neurotechnology, Department of Neurosurgery and Neurotechnology University Hospital and University of Tübingen Tübingen Germany
18. Department of Neurology, Medical Faculty University of Tübingen Tübingen Germany
19. Department of Pediatric Neurology and Developmental Medicine University Children's Hospital Tübingen Tübingen Germany
20. Department of Neurology, Cook Children's Medical Center Fort Worth Texas USA
21. Department of Pediatrics University of North Texas Health Sciences Center Fort Worth Texas USA
22. Department of Rehabilitation Sciences KU Leuven Campus Bruges Brugge Belgium
23. Department of Neurology Vivantes Klinikum Spandau Berlin Germany
24. Clinical Trials Center Cologne Cologne Germany
25. Department of Stereotactic and Functional Neurosurgery, Faculty of Medicine and University Hospital Cologne University of Cologne Cologne Germany
26. Department of Neurology University Hospital of Marburg Marburg Germany