title: [Zinc protoporphyrin in the blood as a screening indicator of occupational hazards produced by lead].
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000097:blood*; D008297:Male; D008665:Metalloporphyrins / Q000097:blood*; D008875:Middle Aged; D009784:Occupational Diseases / Q000097:blood*
chemical_list: D008665:Metalloporphyrins; C017802:zinc hematoporphyrin; D007854:Lead