Departments of Gastroenterology, Acıbadem University, School of Medicine, İstanbul
2.Departments of Internal Medicine and General Surgery, Acıbadem University, School of Medicine, İstanbul
3.Departments of, Division of General Surgery Acıbadem Hospital, İstanbul
4.Divisions of Radiology, and Pathology Ac›badem University, School of Medicine and Acibadem Hospital, İstanbul
5.Departments of Pathology, Acıbadem University School of Medicine, İstanbul
6.Türkiye yüksek İhtisas Hastanesi Gastroenteroloji Kliniği, Ankara
7.University of Nebraska Medical Center, Eppley Cancer Institute, Omaha, Nebraska, USA