title: Persistence of polychlorinated biphenyls in the milk of exposed cows.
mesh_terms: D000818:Animals; D001713:Biphenyl Compounds / Q000032:analysis*; D002417:Cattle; D002849:Chromatography, Gas; D005243:Feces / Q000032:analysis; D008892:Milk / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism / Q000652:urine; D013997:Time Factors
chemical_list: D001713:Biphenyl Compounds; D011078:Polychlorinated Biphenyls