title: Modification of the radioenzymatic assay for the catecholamines.
mesh_terms: D002394:Catechol O-Methyltransferase; D002395:Catecholamines / Q000032:analysis*; D002855:Chromatography, Thin Layer; D008722:Methods; D012436:S-Adenosylmethionine; D014316:Tritium
chemical_list: D002395:Catecholamines; D014316:Tritium; D012436:S-Adenosylmethionine; D002394:Catechol O-Methyltransferase