1. From the Department of Surgery, Division of General Surgery, College of Medicine, King Saud University and King Khalid University Hospital Riyadh, Saudi Arabia
2. Corresspondence: Dr. Gamal A. Khairy, FRCS, MSc · Associate Professor & Consultant General Surgeon, Division of General Surgery, Department of Surgery, College of Medicine, King Saud University, King Khalid University Hospital, PO Box 7805, Riyadh 11472, Saudi Arabia · T: (01) 467-1575 F: (01) 467-9493 · drgamalk@gmail.com · Accepted: September 2010