1. Department of Surgery, Bakhsh Hospital, Jeddah, Saudi Arabia
2. Department of General, Laproscopic and Paediatric Surgeon, Olaya Medical Center (Omc), Riyadh, Saudi Arabia
3. Department of Surgery, United Doctors Hospital, Jeddah, Saudi Arabia
4. Department of General and Laparoscopic Surgery, Future Hospital, Jeddah, Saudi Arabia
5. Department of General Surgery, Dallah Hospital, Riyadh, Saudi Arabia
6. Department of General Surgery, King Fahd Armed Force, Jeddah, Saudi Arabia
7. Department of General Surgery, King Khaled National Guard, Jeddah, Saudi Arabia
8. Department of General and Laparoscopic Surgery, Al Ahsa Hospital, Dammam, Saudi Arabia
9. Department of Surgery, Erfan Hospital, Jeddah, Saudi Arabia
10. Department of General Surgery, Riyadh National Hospital, Riyadh, Saudi Arabia