1. Department of Physical Therapy, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, KSA
2. Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, KSA 3
3. Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, KSA 4
4. Department of Internal Medicine, King Fahd University Hospital and College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, KSA