Pollution.
D000818:Animals; D003634:DDT; D003633:Dichlorodiphenyl Dichloroethylene; D004463:Ecology; D004787:Environmental Pollution; D006801:Humans; D011078:Polychlorinated Biphenyls; D012940:Social Problems
D003633:Dichlorodiphenyl Dichloroethylene; D003634:DDT; D011078:Polychlorinated Biphenyls