1. Department of Medical Genetics, Centre for Genomic Medicine King Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia
2. Department of Anatomy and Cell Biology, College of Medicine Alfaisal University Riyadh Saudi Arabia
3. Department of Radiology King Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia
4. Department of Pediatrics College of Medicine, King Saud University Riyadh Saudi Arabia
5. Department of Pediatrics King Saud University Medical City Riyadh Saudi Arabia
6. Medical Genetics Section, King Fahad Medical City Children's Hospital Riyadh Kingdom of Saudi Arabia
7. Division of Genetics, Department of Pediatrics Prince Sultan Military Medical City Riyadh Saudi Arabia
8. Department of Translational Genomics, Centre for Genomic Medicine King Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia
9. Department of Pediatrics, Children's Hospital of Pittsburgh University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA