1. Genomics Research Department, Saudi Human Genome Project, King Fahad Medical City and King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
2. Montreal Neurological Institute, Montreal, Canada
3. Neurosurgery Department, King Fahad Medical City, Riyadh, Saudi Arabia
4. Saudi Human Genome Program, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
5. Genetics Department, King Faisal Specialists Hospital and Research Center, Riyadh, Saudi Arabia