Department of Gastroenterology, Çamlıca Erdem Hospital, İstanbul
2.Haydarpaşa Numune Hastanesi Gastroenteroloji Kliniği, İstanbul
3.Haydarpaşa Numune Hospital, Departments of 1 st Internal Medicine, İstanbul
4.Department of Gastroenterohepatology, Haydarpasa Numune Training and Research Hospital, İstanbul
5.Haydarpaşa Numune Hospital, Departments of 1 st Internal Medicine and Pathology, İstanbul