the response to a fixed train ( 5 s duration ) of transmural nerve stimulation ( 8 hz , 0.3 ms , 9 v ) applied every 5 min was determined in the control state and in the presence of subthreshold ( for contraction ) concentrations of noradrenaline , adrenaline , clonidine , and methoxamine .
C0028351
noradrenaline
C0014563
adrenaline