1. Department of Medical Genetics; King Faisal Specialist Hospital and Center Hospital; Riyadh Saudi Arabia
2. Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
3. Department of Pediatrics; Faculty of Medicine; Ain Shams University; Cairo Egypt
4. College of Medicine; Al-Faisal University; Riyadh Saudi Arabia
5. Department of Dermatology; King Faisal Specialist
6. Department of Pediatrics; Royal hospital; Muscat Oman
7. Department of Orthopedics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
8. Department of Neurology; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia