Colovesical fistula as a complication of colonic diverticulosis: diagnosis with virtual colonoscopy - NADİR, Işılay and ÖZİN, Yasemin and KILIÇ, Zeki Mesut Yalın and OĞUZ, Dilek and ÜLKER, Aysel and ARDA, Kemal (Turkish Journal of Gastroenterology, 2011)