Cancer in ulcerative colitis: good news and bad news.
D003093:Colitis, Ulcerative / Q000150:complications*; D003110:Colonic Neoplasms / Q000209:etiology* / Q000517:prevention & control; D004812:Epidemiologic Methods; D006801:Humans; D011379:Prognosis; D012004:Rectal Neoplasms / Q000209:etiology* / Q000517:prevention & control; D012306:Risk