The preservation of urine specimens for delta-aminolevulinic acid determination.
D003080:Cold Temperature; D003624:Darkness; D006801:Humans; D007855:Lead Poisoning / Q000652:urine; D007982:Levulinic Acids / Q000652:urine*; D008027:Light; D011309:Preservation, Biological; D013644:Tartrates
D007982:Levulinic Acids; D013644:Tartrates