Herbicide usage.
D000014:Abnormalities, Drug-Induced; D002622:Chemistry, Agricultural; D004147:Dioxins; D004782:Environmental Health; D006016:Glycolates / Q000633:toxicity*; D006540:Herbicides / Q000633:toxicity*; D006801:Humans; D009578:Nitrobenzenes / Q000633:toxicity; D014481:United States
D004147:Dioxins; D006016:Glycolates; D006540:Herbicides; D009578:Nitrobenzenes