1. Department of Internal Medicine, Faculty of Medicine and Health Sciences, UAE University, P.O. Box 17666, Al Ain, UAE
2. Department of Medicine, P.O. Box 1006, Al Ain Hospital, Al Ain, UAE
3. Department of Pathology, Tawam Hospital, P.O. Box 15258, Al Ain, UAE
4. Department of Pathology, Faculty of Medicine and Health Sciences, UAE University, Al Ain, UAE