title: Effect of urea on the simple determination of delta-aminolevulinic acid in urine.
mesh_terms: D000622:Aminolevulinic Acid / Q000652:urine*; D006801:Humans; D007855:Lead Poisoning / Q000652:urine; D007982:Levulinic Acids / Q000652:urine*; D014508:Urea / Q000652:urine*
chemical_list: D007982:Levulinic Acids; D000622:Aminolevulinic Acid; D014508:Urea