Prognosis of ulcerative colitis after medical treatment.
D003093:Colitis, Ulcerative / Q000150:complications / Q000188:drug therapy / Q000401:mortality*; D005500:Follow-Up Studies; D006801:Humans; D008532:Megacolon, Toxic / Q000209:etiology; D011379:Prognosis; D012008:Recurrence