Department of Gastroenterology, Dokuz Eylül University Faculty of Medicine, İzmir, Turkey
2.Dokuz Eylül University, Faculty of Medicine, Division of Gastroenterology, İzmir, Turkey
3.Departments of General Surgery and Pathology, Dokuz Eylül University School of Medicine, İzmir
4.Departments of Pathology, Dokuz Eylül University, School of Medicine, İzmir
5.Departments of Gastroenterology and Pathology, Dokuz Eylül University, School of Medicine, İzmir