title: Colonic perforation in ulcerative colitis.
mesh_terms: D000328:Adult; D003093:Colitis, Ulcerative / Q000150:complications*; D003108:Colonic Diseases / Q000209:etiology*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology*; D008297:Male; D008875:Middle Aged