Colonoscopy in distal colon ulcerative colitis.
D000328:Adult; D003093:Colitis, Ulcerative / Q000175:diagnosis*; D003106:Colon / Q000473:pathology; D004724:Endoscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D013997:Time Factors