Department of Gastroenterology, Gazi University Faculty of Medicine, Ankara, Turkey
2.Departments of General Surgery and Clinical Infectious Diseases, Gazi University, School of Medicine, Ankara
3.Departments of Gastroenterology Clinical Infectious Diseases, Gazi University, School of Medicine, Ankara
4.Departments of Clinical Infectious Diseases, Gazi University, School of Medicine, Ankara
5.Department of Pathology, Dışkapı Training and Research Hospital, Ankara
6.Department of Biochemistry, Keçiören Training and Research Hospital, Ankara