Smoking and lead.
D005260:Female; D006801:Humans; D007854:Lead / Q000032:analysis* / Q000097:blood / Q000652:urine; D008297:Male; D009787:Occupational Medicine; D009790:Occupations; D012044:Regression Analysis; D012737:Sex Factors; D012907:Smoking; D013053:Spectrophotometry; D014481:United States
D007854:Lead