1. Department of General and Laparoscopic Surgery, Faculty of Medicine, Cairo University, Cairo, Egypt
2. Department of General and Laparoscopic Surgery, Altenagelvin Area Hospital, United Kingdom
3. Department of Laparoscopic and Bariatric Surgery, New Medical Centre Hospital, Abu Dhabi, United Arab Emirates
4. Department of Radiology, Faculty of Medicine, Cairo University, Cairo, Egypt
5. Department of Radiology, Altenagelvin Area Hospital, Londonderry, United Kingdom