Inflammatory bowel disease.
D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D003093:Colitis, Ulcerative / Q000175:diagnosis / Q000601:surgery; D003424:Crohn Disease / Q000175:diagnosis / Q000601:surgery; D004751:Enteritis / Q000601:surgery*; D006801:Humans; D008722:Methods