Departments of Internal Medicine, Fatih University, School of Medicine, Ankara
2.Department of Gastroenterology, Medicana International Ankara Hospital, Ankara
3.Department of Gastroenterology and Psychiatry, Başkent University School of Medicine, Ankara
4.Department of Pathology, Başkent University Medical School, Ankara
5.Department of Gastroenterology, Güven Hospital, Ankara