title: [Clinical features of ulcerative colitis].
mesh_terms: D000005:Abdomen; D000328:Adult; D000368:Aged; D003093:Colitis, Ulcerative / Q000175:diagnosis* / Q000453:epidemiology; D003967:Diarrhea / Q000209:etiology; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology; D012007:Rectum