title: A study of ulcerative colitis in service personnel.
mesh_terms: D000293:Adolescent; D000328:Adult; D001706:Biopsy; D003093:Colitis, Ulcerative / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008887:Military Medicine; D011859:Radiography; D012812:Sigmoidoscopy