1. College of Medicine Alfaisal University Riyadh Saudi Arabia
2. Department of Medical Genetics Mission Fullerton Genetics Center Asheville North Carolina USA
3. Department of Neurosciences King Faisal Specialist Hospital and Research Center Jeddah Saudi Arabia
4. Department of Neurosciences King Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia
5. Department of Medical Genetics King Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia
6. Department of Genetics King Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia