title: Free erythrocyte protoporphyrin as an indicator of the biological effect of lead in adult males. III. Behavior of free erythrocyte protoporphyrin in workers with past lead exposure.
mesh_terms: D000328:Adult; D004781:Environmental Exposure; D004912:Erythrocytes / Q000032:analysis*; D006801:Humans; D007855:Lead Poisoning / Q000097:blood*; D008297:Male; D008875:Middle Aged; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood*
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins