Lead in petrol.
D004787:Environmental Pollution; D005260:Female; D005648:Fuel Oils / Q000009:adverse effects*; D006801:Humans; D007854:Lead / Q000097:blood*; D007855:Lead Poisoning / Q000209:etiology*; D008297:Male; D010578:Petroleum / Q000009:adverse effects*; D012737:Sex Factors
D005648:Fuel Oils; D010578:Petroleum; D007854:Lead