cardiac activation was achieved by either intracoronary administration of a physiological dose of catecholamine ( noradrenaline ; 0.4 microgram/kg/min or adrenaline ; 0.2 microgram/kg/min ) , or by electrical stimulation of the left stellate ganglion ( 4 hz , 2 msec , 10 v for 5 min ) .
C0028351
noradrenaline
C0014563
adrenaline