title: Diagnostic value of free erythrocyte porphyrins and blood lead as a screening test for lead exposure.
mesh_terms: D000622:Aminolevulinic Acid / Q000097:blood; D004912:Erythrocytes / Q000378:metabolism*; D006801:Humans; D007854:Lead / Q000097:blood* / Q000652:urine; D007855:Lead Poisoning / Q000097:blood*; D011166:Porphyrins / Q000097:blood*
chemical_list: D011166:Porphyrins; D007854:Lead; D000622:Aminolevulinic Acid