1. Department of Internal Medicine, King Abdullah Hospital, Bisha , Saudi Arabia.
2. Department of Community Medicine , College of Medicine, University of Bisha, Bisha, Saudi Arabia.
3. Department of Basic Medical Sciences [Biochemistry] , College of Medicine, University of Bisha, Bisha, Saudi Arabia.
4. Professor and Head Biochemistry Department of Basic Medical Sciences College of Medicine University of Bisha Bisha, Saudi Arabia.