Department of Gastroenterology, Abant İzzet Baysal University Faculty of Medicine, Bolu, Turkey
2.Department of Gastroenterology, Bolu İzzet Baysal State Hospital, Bolu, Turkey
3.Department of Chest Diseases, Abant İzzet Baysal University Faculty of Medicine, Bolu, Turkey
4.Department of Radiology, Abant İzzet Baysal University Faculty of Medicine, Bolu, Turkey
5.Department of Pathology, Abant İzzet Baysal University Faculty of Medicine, Bolu, Turkey