title: Histopathogenesis of intestinal tumors induced by oral administration of bracken fern, Pteridium aquilinum in rats.
mesh_terms: D000818:Animals; D005260:Female; D007414:Intestinal Neoplasms / Q000209:etiology* / Q000473:pathology; D008297:Male; D010939:Plant Poisoning / Q000473:pathology*; D051381:Rats; D011919:Rats, Inbred Strains; D013047:Specific Pathogen-Free Organisms