1. Department of General Surgery, College of Medicine, King Saud University Medical City, King Khalid University Hospital, Riyadh, Saudi Arabia
2. Department of General Surgery, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, National Guard Health Affair, Riyadh, Saudi Arabia
3. Department of General Surgery, AlNoor Hospital, Ministry of Health, Makkah, Saudi Arabia
4. Department of Pathology and Laboratory Medicine, College of Medicine, King Saud University Medical City, Riyadh, Saudi Arabia