title: Determination of urinary 3-methoxy-4-hydroxymandelic and 3-methoxy-4-hydroxyphenylacetic acids by fused silica capillary gas chromatography.
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000652:urine; D000328:Adult; D002849:Chromatography, Gas; D006719:Homovanillic Acid / Q000652:urine*; D006801:Humans; D006973:Hypertension / Q000652:urine; D010673:Pheochromocytoma / Q000652:urine; D012822:Silicon Dioxide; D014642:Vanilmandelic Acid / Q000652:urine*
chemical_list: D014642:Vanilmandelic Acid; D012822:Silicon Dioxide; D006719:Homovanillic Acid