1. Department of Pediatrics College of Medicine Qassim University Qassim Saudi Arabia
2. Division of Genetics Department of Pediatrics King Abdulaziz Medical City Riyadh Saudi Arabia
3. Department of Medical Genetics King Faisal Specialist Hospital and Research Centre Riyadh Saudi Arabia
4. Department of Genetics King Faisal Specialist Hospital and Research Centre Riyadh Saudi Arabia
5. King Saud bin Abdulaziz University for Health Sciences King Abdulaziz Medical City Riyadh Saudi Arabia