Karaelmas University, Department of Internal Medicine, Zonguldak
2.Hacettepe University Medical School Departments of Internal Medicine Ankara, Turkey
3.Departments of Gastroenterology, Zonguldak Karaelmas University, School of Medicine, Zonguldak
4.Gazi Üniversitesi Tıp Fakültesi Klinik Mikrobiyoloji ve Enfeksiyon Hastalıkları Anabilim Dalı ve İmmunoloji Anabilim Dalı, Ankara