1. Neurology Section, Department of Medicine, King Abdulaziz Medical City, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
2. King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
3. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
4. Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
5. Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
6. Division of Neurology, Department of Internal Medicine, King Abdulaziz University Hospital, College of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia