1. Gastrointestinal Surgery Unit, Department of General Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
2. Department of General Surgery, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey
3. Department of General Surgery, VKV Koc University Hospital, VKV Koc University Medicine School, Istanbul, Turkey
4. Gastroenterohepatology, Department of Internal Diseases, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
5. Department of Radiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey