1. Trauma and Acute Care Surgery Unit , Department of Surgery, , P.O Box 2925 Riyadh 11461 , Saudi Arabia
2. College of Medicine, King Saud University , Department of Surgery, , P.O Box 2925 Riyadh 11461 , Saudi Arabia
3. General Surgery Section , Department of Surgery, , P.O Box 3665 Jeddah 22421 , Saudi Arabia
4. King Abdulaziz Hospital, Ministry of Health , Department of Surgery, , P.O Box 3665 Jeddah 22421 , Saudi Arabia
5. Department of Surgery , Faculty of Medicine, , P.O Box 6809 Jazan 82817-28204 , Saudi Arabia
6. Jazan University , Faculty of Medicine, , P.O Box 6809 Jazan 82817-28204 , Saudi Arabia
7. College of Medicine, Sulaiman Al Rajhi University , P.O Box 777 Albukairiyah 51941 , Saudi Arabia