Effects of electrical stimulation applied during absolute refractory period on action potential duration and L-type calcium channel currents of ventricular myocytes from normal and failing guinea-pigs是什么意思_Effects of electrical stimulation applied during absolute refractory period on action potential duration and L-type calcium channel currents of ventricular myocytes from normal and failing guinea-pigs在线翻译_英语_读音_用法_例句