title: Alterations of the histological and histochemical pattern in ulcerative colitis biopsy specimens.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003093:Colitis, Ulcerative / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012007:Rectum / Q000201:enzymology / Q000473:pathology*