title: A rapid and simple gas-liquid chromatographic procedure for homovanillic and vanillylmandelic acid in urine.
mesh_terms: D002849:Chromatography, Gas; D005069:Evaluation Studies as Topic; D006719:Homovanillic Acid / Q000652:urine*; D006801:Humans; D008722:Methods; D008745:Methylation; D008832:Microchemistry; D010648:Phenylacetates / Q000652:urine*; D013053:Spectrophotometry; D013997:Time Factors; D014642:Vanilmandelic Acid / Q000652:urine*
chemical_list: D010648:Phenylacetates; D014642:Vanilmandelic Acid; D006719:Homovanillic Acid