1. Department of Chemistry Institute of Biochemistry University of Cologne Cologne Germany
2. Neurogenetics Group Department of Molecular Genetics VIB Antwerp Belgium
3. Laboratory of Neurogenetics Institute Born‐Bunge University of Antwerp Antwerp Belgium
4. GENOMED Center for Medical Genetics University of Antwerp Antwerp Belgium
5. Division Cell Physiology Zoological Institute Technische Universität Braunschweig Braunschweig Germany
6. Pediatric Neurology Clinic Al Obregia Hospital Bucharest Romania
7. Department of Neurology, Pediatric Neurology, Psychiatry, Child and Adolescent Psychiatry, and Neurosurgery Carol Davila University of Medicine and Pharmacy Bucharest Romania
8. Division of Genetic Medicine Department of Pediatrics University of Washington Seattle WA USA
9. Wellcome Trust Sanger Institute Wellcome Trust Genome Campus Hinxton UK
10. Center for Molecular Medicine Cologne (CMMC) University of Cologne Cologne Germany
11. Cologne Excellence Cluster on Cellular Stress Responses in Aging‐Associated Diseases (CECAD) University of Cologne Cologne Germany
12. Psychiatric & Neurodevelopmental Genetics Unit Department of Psychiatry Massachusetts General Hospital and Harvard Medical School Boston MA USA
13. Cologne Center for Genomics Cologne Excellence Cluster on Cellular Stress Responses in Aging‐Associated Diseases (CECAD) University of Cologne Cologne Germany
14. Department of Neuropediatrics University Medical Faculty Giessen and Marburg Giessen Germany
15. Institute for Molecular Medicine Finland (FIMM) University of Helsinki Helsinki Finland
16. Program in Medical and Population Genetics The Broad Institute of MIT and Harvard Cambridge MA USA
17. The Stanley Center for Psychiatric Research The Broad Institute of MIT and Harvard Cambridge MA USA
18. Department of Neuropediatrics University Medical Center Schleswig‐Holstein Christian Albrechts University Kiel Germany
19. Division of Neurology The Children's Hospital of Philadelphia Philadelphia PA USA
20. Division of Neurology Antwerp University Hospital Antwerp Belgium
21. Inserm U 1127 CNRS UMR 7225 Sorbonne Universités UPMC Univ Paris 06 UMR S 1127 Institut du Cerveau et de la Moelle épinière, ICM Paris France
22. Centre de reference épilepsies rares Epilepsy unit AP‐HP Groupe hospitalier Pitié‐Salpêtrière F‐75013 Paris France