title: Improved assay for urinary 5-hydroxyindoleacetic acid by HPLC with electrochemical detection.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004563:Electrochemistry; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000652:urine*
chemical_list: D006897:Hydroxyindoleacetic Acid