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