title: Crohn's disease. A follow-up study.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003424:Crohn Disease / Q000175:diagnosis / Q000453:epidemiology / Q000601:surgery / Q000628:therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence