Comparison of virtual colonoscopy with conventional colonoscopy in detection of colorectal polyps - SELÇUK, Doğan; DEMİREL, Kemal and ÖZER, Harun and BACA, Bilgi and HATEMİ, İbrahim and MİHMANLI, İsmail and KORMAN, Uğur and ÖĞÜT, Gündüz (Turkish Journal of Gastroenterology, 2006)