Departments of Gastroenterology, Türkiye Yüksek İhtisas Hospital, Ankara
2.Departments of Gastroenterology and Pathology, Türkiye Yüksek İhtisas Training and Research Hospital, Ankara
3.Department of Gastroenterology, Türkiye Yüksek İhtisas Hospital, Ankara
4.Cerrahpaşa Tıp Fakültesi İç Hastalıkları Anabilim Dalları, İstanbul
5.Gastroenterology Clinic, Türkiye Yüksek İhtisas Hospital, Ankara
6.Departments of Cardiovascular Surgery and 3Gastroenterology Türkiye Yüksek İhtisas Hospital, Ankara
7.Department of Gastrointestinal Surgery, Türkiye Yuksek Ihtisas Training and Research Hospital, Ankara
8.Department of Gastroenyterology Türkiye Yüksek İhtisas Hospital, Ankara