1. Division of Clinical Genetics and Metabolic Disorders, Pediatric Department; Tawam Hospital; Al-Ain United Arab Emirates
2. Department of Molecular and Human Genetics; Baylor College of Medicine; Houston Texas
3. Medical Scientist Training Program and Program in Developmental Biology; Baylor College of Medicine; Houston Texas
4. Section of Medical Genetics, Children's Hospital; King Fahad Medical City; Riyadh Saudi Arabia
5. King Abdullah International Medical Research Centre; King Saud bin Abdulaziz University for Health Sciences; Riyadh Saudi Arabia
6. Division of Genetics, Department of Pediatrics; King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (NGHA); Riyadh Saudi Arabia
7. Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
8. Department of Anatomy and Cell Biology, College of Medicine; Alfaisal University; Riyadh Saudi Arabia
9. Department of Medical Genetics; King Faisal Specialist Hospital and Research Centre; Riyadh Saudi Arabia
10. Department of Neurosciences; King Faisal Specialist Hospital and Research Centre; Riyadh Saudi Arabia
11. Department of Pediatrics, Al-Jahra Hospital; Ministry of Health; Al-Jahra City Kuwait
12. Department of Pediatrics; Stanford University School of Medicine; Stanford California
13. Lineagen; Salt Lake City Utah
14. Division of Medical Genetics and Metabolism; Children's Hospital of The King's Daughters; Norfolk Virginia
15. Department of Pediatrics, Salzburger Landeskliniken; Paracelsus Medical University; Salzburg Austria
16. Institute of Human Genetics; Technische Universität München; Munich Germany
17. Institute of Human Genetics; Helmholtz Zentrum München; Neuherberg Germany
18. Centre for Child and Adolescent Medicine, Divisions of General Pediatrics, Neuropediatrics, and Metabolic Medicine; University Hospital; Heidelberg Germany
19. Institute of Human Genetics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
20. Department of Pediatrics; Paracelsus Medical University Salzburg; Salzburg Austria
21. Department of Biostatistics, School of Public Health; University of Texas-Health Science Center at Houston; Houston Texas