title: Chemical residues in Lake Erie fish--1970-71.
mesh_terms: D000818:Animals; D002849:Chromatography, Gas; D003634:DDT / Q000032:analysis; D004026:Dieldrin / Q000032:analysis; D005399:Fishes; D005618:Fresh Water; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D007306:Insecticides / Q000032:analysis*; D008628:Mercury / Q000032:analysis; D009820:Ohio; D009864:Ontario; D011078:Polychlorinated Biphenyls / Q000032:analysis
chemical_list: D006846:Hydrocarbons, Halogenated; D007306:Insecticides; D003634:DDT; D011078:Polychlorinated Biphenyls; D008628:Mercury; D004026:Dieldrin