1. Division of Human Genetics, Department of Pediatrics The Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
2. Department of Pathology and Laboratory Medicine The Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
3. Department of Pediatrics, Faculty of Medicine Kuwait University Kuwait City Kuwait
4. Pediatrics Ward, Grenada General Hospital St. George's Grenada
5. Clinical Teaching Unit, St. George's University St. George's Grenada
6. Pediatric Movement Disorders Program, Division of Pediatric Neurology Barrow Neurological Institute, Phoenix Children's Hospital Phoenix Arizona USA
7. Departments of Child Health, Neurology, Cellular & Molecular Medicine and Program in Genetics University of Arizona College of Medicine Phoenix Arizona USA
8. Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, and Department of Pediatrics University of Melbourne Melbourne Australia
9. Manchester Centre for Genomic Medicine Saint Mary's Hospital, Manchester University NHS Foundation Trust Manchester UK
10. Division of Evolution and Genomic Sciences School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre Manchester UK
11. Department of Pediatric Neurology Royal Manchester Children's Hospital, Manchester University Foundation Trust Manchester UK
12. Service de génétique médicale, CHU de Nantes Nantes France
13. Department of Anatomy, Physiology and Pharmacology St. George University School of Veterinary Medicine St. George's Grenada
14. Department of Genetics and Pediatrics Washington University St. Louis Missouri USA
15. Department of Genetics Yale Center for Genome Analysis, Yale School of Medicine New Haven Connecticut USA
16. Brain and Mitochondrial Research Group Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, and Department of Pediatrics, University of Melbourne Melbourne Australia
17. Discipline of Child & Adolescent Health Sydney Medical School, University of Sydney Sydney Australia
18. Institute for Neuroscience and Muscle Research, The Children's Hospital at Westmead Sydney New South Wales Australia
19. St. George's University, University Health Services St. George's Grenada
20. Human Genetics Program, Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute La Jolla California USA
21. Department of Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
22. Department of Biochemistry St. George's University School of Medicine St. George's Grenada
23. Windward Islands Research and Education Foundation True Blue, St. George's Grenada