title: PLASMA PORPHYRINS IN LEAD WORKERS.
mesh_terms: D035843:Biomedical Research; D001769:Blood; D001826:Body Fluids; D007855:Lead Poisoning; D008660:Metabolism; D010949:Plasma; D011166:Porphyrins; D014116:Toxicology; D014556:Urine
chemical_list: D011166:Porphyrins
keywords: BLOOD; CLINICAL RESEARCH; LEAD POISONING; METABOLISM; PORPHYRINS; TOXICOLOGIC REPORT; URINE