title: Identification and quantification of 3-methoxy-4-hydroxyphenyllactic acid (VLA) in cerebrospinal fluid and 3-methoxy-4-hydroxy phenylpyruvic acid (VPA) in the urine of Parkinsonian patients treated with L-DOPA.
mesh_terms: D002396:Catechols / Q000134:cerebrospinal fluid; D002849:Chromatography, Gas; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D007773:Lactates / Q000134:cerebrospinal fluid; D007980:Levodopa / Q000627:therapeutic use*; D013058:Mass Spectrometry; D010300:Parkinson Disease / Q000188:drug therapy / Q000378:metabolism*; D010667:Phenylpyruvic Acids / Q000134:cerebrospinal fluid*
chemical_list: D002396:Catechols; D007773:Lactates; D010667:Phenylpyruvic Acids; D007980:Levodopa