1. Medical Education Department, College of Medicine, Dar Al Uloom University, Riyadh, Saudi Arabia
2. Medical Microbiology & Immunology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
3. Fifth year medical student, College of Medicine, Dar Al Uloom University, Riyadh, Saudi Arabia
4. Clinical Medical Sciences Department, College of Medicine, Dr Al-Uloom University, Riyadh, Saudi Arabia
5. Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Tanta University, Egypt