1. Human Genetics Program, Sanford Burnham Prebys Medical Discovery InstituteLa Jolla California
2. Department of Molecular and Human GeneticsBaylor College of MedicineHouston Texas
3. Texas Children's HospitalHouston Texas
4. Department of Clinical and Experimental MedicineChild Neurology and PsychiatryUniversity of CataniaCatania Italy
5. CNR, Institute for Polymers, Composites and BiomaterialsCatania Italy
6. Departments of PediatricsDivision of Medical GeneticsUniversity of UtahSalt Lake City Utah
7. Department of PediatricsUniversity of Illinois College of MedicinePeoria Illinois
8. Department of PathologyUniversity of UtahSalt Lake City Utah
9. Department of Paediatrics & Adolescent MedicineLKS Faculty of MedicineThe University of Hong Kong Hong Kong SAR China
10. Division of Neurogenetics and Hugo W. Moser Research Institute, Kennedy Krieger InstituteBaltimore Maryland
11. Department of Metabolic MedicineQueensland Children's HospitalBrisbane Australia
12. Schools of Medicine, University of Queensland Brisbane, Griffith University Gold CoastBrisbane Australia
13. Department of PediatricsUniversity of WashingtonSeattle Washington
14. Seattle Children's HospitalSeattle Washington
15. Department of Human GeneticsUCLALos Angeles California
16. Department of PediatricsUCLALos Angeles California
17. Departments of PediatricsUniversity of WashingtonSeattle Washington
18. Center for Integrative Brain Research, Seattle Children's Research InstituteSeattle Washington
19. Department of Medical GeneticsShodair Children's HospitalHelena Montana
20. Northwestern University Feinberg School of MedicineChicago Illinois
21. Office of the Clinical Director, National Human Genome Research Institute, National Institutes of HealthBethesda Maryland
22. Undiagnosed Diseases Program, Common Fund, National Institutes of HealthBethesda Maryland
23. Danish Epilepsy Center‐FiladelfiaDianalund Denmark
24. APHP,Genetics DepartmentGH Pity SalpetriereCRMR Intellectual Disabilities of Rare CausesSorbonne UniversityParis France
25. Ambry GeneticsAliso Viejo California
26. GeneDxGaithersburg Maryland
27. Center for Neurogenetics Brain and Mind Research Institute Weill Cornell MedicineNew York New York
28. Department of Pathology and Laboratory MedicineUCLALos Angeles California
29. Department of Metabolic MedicineThe Royal Children's Hospital, Melbourne, Parkville, Victoria Australia
30. Department of PaediatricsUniversity of MelbourneParkville Victoria Australia
31. Clinical Genetics and Neurogenetics, Centro Universitario Estacio de Ribeirao PretoRibeirao Preto Brazil
32. Department of PediatricsDivision of Medical Genetics, University of California, San FranciscoSan Francisco California
33. Neurology Division Children's Hospital Los AngelesLos Angeles California
34. Department of NeurologyKeck School of Medicine, University of Southern CaliforniaLos Angeles California
35. Department of NeuropediatricsChristian‐Albrechts‐University of KielKiel Germany
36. Department of Psychiatry & Biobehavioral SciencesUCLALos Angeles California
37. Laboratory of Biochemistry, Faculty of Biotechnology, University of WroclawWroclaw Poland
38. Institute for Society and Genetics, UCLALos Angeles California
39. Departments of Pediatrics & NeurologyKeck School of Medicine of University of Southern CaliforniaLos Angeles California
40. Division of Child and Adolescent Neurology, Mayo ClinicRochester Minnesota
41. Department of PediatricsCedars‐Sinai Medical CenterLos Angeles California
42. Department of NeurologyCedars‐Sinai Medical CenterLos Angeles California
43. Board of Governors Regenerative Medicine Institute, Cedars‐Sinai Medical CenterLos Angeles California
44. Division of Genetics, Department of PediatricsMetabolism and Genomic Medicine, University of MichiganAnn Arbor Michigan
45. The University of Melbourne, Austin HealthMelbourne Australia
46. Joint BCM‐CUHK Center of Medical GeneticsPrince of Wales HospitalShaTin Hong Kong SAR
47. The University of Melbourne, Royal Children's Hospital, Florey Institute and Murdoch Children's Research InstituteMelbourne Australia
48. Department of Pediatrics, Division of Child NeurologyWeill Cornell MedicineNew York New York
49. Neurology & PediatricsUniversity of CaliforniaSan Francisco California
50. Department of NeurosciencesRehabilitationOphthalmologyGeneticsMaternal and Child HealthPediatric Neurology and Muscular Diseases UnitG. Gaslini InstituteUniversity of GenoaGenova Italy
51. Paediatric Neurosciences Research GroupRoyal Hospital for ChildrenQueen Elizabeth University HospitalsGlasgow UK
52. Center for Genetic Medicine Research, Children's National Medical CenterColumbia Washington
53. Department of PediatricsNaval Medical CenterSan Diego California
54. Department of PediatricsGenetics DivisionLAC+USC Medical CenterUniversity of Southern CaliforniaLos Angeles California
55. Department of PediatricsDivision of Human GeneticsChildren's Hospital of PhiladelphiaPhiladelphia Pennsylvania
56. Metabolic Unit, Great Ormond Street Hospital NHS Trust, Institute for Child Health UCLLondon UK