title: Colonoscopic surveillance for cancer in patients with chronic ulcerative colitis: is it working?
authors.forename: R C
authors.initials: RC
authors.lastname: Thirlby
mesh_terms: D001706:Biopsy; D003093:Colitis, Ulcerative / Q000150:complications*; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000209:etiology* / Q000473:pathology; D006801:Humans; D011230:Precancerous Conditions / Q000209:etiology* / Q000473:pathology