title: "Precancer" lesions in ulcerative colits. A retrospective study of rectal biopsy and colectomy specimens.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001706:Biopsy; D003093:Colitis, Ulcerative / Q000150:complications* / Q000473:pathology; D003106:Colon / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011230:Precancerous Conditions / Q000209:etiology* / Q000473:pathology; D012007:Rectum / Q000473:pathology; D012189:Retrospective Studies