title: Creatinine and specific gravity adjustment of ALA in urinary spot samples: is there any need?
mesh_terms: D000328:Adult; D000622:Aminolevulinic Acid / Q000652:urine*; D003404:Creatinine / Q000652:urine*; D004781:Environmental Exposure; D006801:Humans; D007854:Lead / Q000097:blood*; D007982:Levulinic Acids / Q000652:urine*; D008297:Male; D008875:Middle Aged; D009790:Occupations; D013046:Specific Gravity
chemical_list: D007982:Levulinic Acids; D007854:Lead; D000622:Aminolevulinic Acid; D003404:Creatinine