1. Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Assessment and Evaluation Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
3. Department of Medicine, Obesity Research Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
4. Strategic Center for Diabetes Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
5. Department of Medical Education, College of Medicine, King Saud University, Riyadh, Saudi Arabia