1. Department of Hematology, King Abdulaziz University Hospital, King Abdulaziz University, Jeddah, Saudi Arabia
2. Department of Hematology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
3. King Fahd Medical Research Center, Hematology Research Unit, King Abdulaziz University, Jeddah, Saudi Arabia
4. Department of Pathology, King Abdulaziz University Hospital, King Abdulaziz University, Jeddah, Saudi Arabia
5. Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia