Symposium. Crohn's disease: anal lesions.
D001004:Anus Diseases / Q000150:complications* / Q000453:epidemiology / Q000473:pathology; D003424:Crohn Disease / Q000150:complications* / Q000000981:diagnostic imaging; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008131:London; D011859:Radiography; D012003:Rectal Fistula / Q000209:etiology