1. Department of Endocrinology, Yas Clinic Khalifa City, Abu Dhabi
2. Department of Medicine, Daman Diabetes Center, Faculty of Medicine, University of Kuwait, Kuwait City, Kuwait
3. Department of Medicine, Daman Diabetes Center, Faculty of Medicine, University of Kuwait, Kuwait City
4. Obesity, Endocrine and Metabolism Center, King Fahad Medical City, Faculty of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh