1. 1 Department of Surgery, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-kharj, Saudi Arabia
2. 2 Department of Pathology, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
3. 3 Surgery Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia
4. 4 Department of Pathology, King Abdulaziz Medical City, Riyadh, Saudi Arabia
5. 5 College of Medicine, Prince Sattam Bin Abdulaziz University, Al-kharj, Saudi Arabia