The measurement of  -aminolevulinic acid in urine.
D002675:Child, Preschool; D002852:Chromatography, Ion Exchange; D003237:Connecticut; D005060:Europe; D006418:Heme / Q000096:biosynthesis; D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000175:diagnosis* / Q000652:urine; D007982:Levulinic Acids / Q000097:blood / Q000652:urine*; D008403:Mass Screening; D014481:United States; D014505:Urban Population
D007982:Levulinic Acids; D007854:Lead; D006418:Heme