1. Department of Family and Community Medicine, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
2. Department of Clinical Biochemistry, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
3. University Institute of Public Health, The University of Lahore, Pakistan
4. Department of Medicine, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
5. Department of Physiology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
6. Sixth-year Medical Students, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia