1. Department of Adult Cardiology, King Fahd Armed Forces Hospital, Jeddah, Saudi Arabia
2. Department of Internal Medicine, King Fahad Armed Forces Hospital, Jeddah, Saudi Arabia
3. Department of Internal Medicine, King Fahd Armed Forces Hospital, Jeddah, Saudi Arabia
4. Department of Hematology, International Medical Center, Jeddah, Saudi Arabia
5. Internal Medicine, King Fahad Armed Forces Hospital , Jeddah, Saudi Arabia