title: Epidemiological study on the relationships between lead exposure and porphyrin metabolism.
mesh_terms: D000328:Adult; D000622:Aminolevulinic Acid / Q000652:urine; D002940:Circadian Rhythm; D004912:Erythrocytes / Q000378:metabolism*; D005260:Female; D006801:Humans; D007855:Lead Poisoning / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D011166:Porphyrins / Q000378:metabolism* / Q000652:urine
chemical_list: D011166:Porphyrins; D000622:Aminolevulinic Acid