Radiology in ulcerative colitis.
D003093:Colitis, Ulcerative / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging; D006801:Humans; D007413:Intestinal Mucosa / Q000000981:diagnostic imaging; D007416:Intestinal Perforation / Q000000981:diagnostic imaging; D008532:Megacolon, Toxic / Q000000981:diagnostic imaging; D011859:Radiography