plasma epinephrine ( e ) and norepinephrine ( ne ) concentrations were measured ( radioenzymatic assay ) in blood samples simultaneously withdrawn from the aorta ( ao ) and coronary sinus ( cs ) on 10 anesthetized dogs immediately before and during a 1-min period of electrical stimulation of the left stellate ganglion ( 4 v , 4 ms , 10 hz ) .
C0014563
epinephrine
C0028351
norepinephrine