1. Department of Psychiatry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAUDI ARABIA
2. Department of Family and Community Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAUDI ARABIA
3. Department of Geriatrics and Gerontology, Ain Shams University, Cairo, EGYPT
4. Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAUDI ARABIA
5. Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAUDI ARABIA