Department of Gastroenterology, Adana Baskent University Hospital, Adana
2.Departments of Biostatistics and General Surgery, Çukurova University School of Medicine, Adana
3.Departments of Gastroenterology and Family Medicine, Başkent University, Adana
4.Departments of Biostatistics and Public Health, Çukurova University School of Medicine, Adana