Simultaneous liquid-chromatographic determination of 3,4-dihydroxyphenylglycol, catecholamines, and 3,4-dihydroxyphenylalanine in plasma, and their responses to inhibition of monoamine oxidase. - Eisenhofer,G.; Goldstein,D.S.; Stull,R.; Keiser,H.R.; Sunderland,T.; Murphy,D.L.; Kopin,I.J. (Clinical Chemistry, 1986)