1. Endocrinology & Diabetes Unit, Department of Medicine, King Khalid University Hospital & College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. University Diabetes Center, King Abdulaziz University Hospital, King Saud University, Riyadh, Saudi Arabia
3. Strategic Center for Diabetes Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
4. Family & Community Medicine Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
5. College of Medicine, King Saud University, Riyadh, Saudi Arabia