1. Colorectal Research Chair, Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Department of Pediatrics, King Abdullah Specialized Children’s Hospital, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
3. College of Medicine, King Saud University, Riyadh, Saudi Arabia
4. Department of Obstetrics and Gynecology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
5. Department of Pathology and Laboratory Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
6. Department of Clinical Surgery, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia