1. Section of Medical Genetics, Department of Pediatrics Children's Specialist Hospital, King Fahad Medical City Riyadh Saudi Arabia
2. Centre for Genomic Medicine King Faisal Specialist Hospital and Research Centre Riyadh Saudi Arabia
3. Department of Medical Genetics King Faisal Specialist Hospital and Research Centre Riyadh Saudi Arabia
4. College of Medicine Alfaisal University Riyadh Saudi Arabia
5. Division of Genetics Department of Pediatrics Prince Sultan Military Medical City Riyadh Saudi Arabia
6. Division of Genetics, Department of Pediatrics King Abdulaziz Medical City Riyadh Saudi Arabia