title: A modification of the Berkó-Durkó method for the determination of delta-aminolevulinic acid in urine.
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D007982:Levulinic Acids / Q000652:urine*; D008722:Methods; D013053:Spectrophotometry; D013997:Time Factors; D014508:Urea
chemical_list: D007202:Indicators and Reagents; D007982:Levulinic Acids; D014508:Urea