title: Gas chromatographic estimation of urinary homovanillic and 4-hydroxy-3-methoxymandelic acids using capillary columns.
mesh_terms: D002849:Chromatography, Gas / Q000295:instrumentation; D006719:Homovanillic Acid / Q000652:urine*; D010648:Phenylacetates / Q000652:urine*; D014642:Vanilmandelic Acid / Q000652:urine*
chemical_list: D010648:Phenylacetates; D014642:Vanilmandelic Acid; D006719:Homovanillic Acid