title: [Chronic ulcerative colitis: a premaligant disease of the gastrointestinal tract].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003093:Colitis, Ulcerative / Q000473:pathology*; D003110:Colonic Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011230:Precancerous Conditions / Q000473:pathology*; D012189:Retrospective Studies
vernacular_title: La colitis ulcerosa crónica: una enfermedad premaligna del tracto gastrointestinal.