title: The free erythrocyte protoporphyrin assay in monitoring lead-exposed workers. Comparison of two fluorometric methods.
mesh_terms: D004781:Environmental Exposure; D004912:Erythrocytes / Q000032:analysis*; D005470:Fluorometry / Q000379:methods*; D006801:Humans; D007855:Lead Poisoning / Q000175:diagnosis*; D009784:Occupational Diseases / Q000175:diagnosis*; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood*
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins