title: The effect of mixed exposure to lead and zinc on ALA level in urine.
mesh_terms: D000328:Adult; D004781:Environmental Exposure; D006801:Humans; D007854:Lead / Q000097:blood / Q000494:pharmacology*; D008297:Male; D000623:Porphobilinogen Synthase / Q000652:urine*; D015032:Zinc / Q000097:blood / Q000494:pharmacology*
chemical_list: D007854:Lead; D000623:Porphobilinogen Synthase; D015032:Zinc