Antiarrhythmic Efficacy of Dipyridamole in TreatingReperfusion Arrhythmias: Evidence for Cyclic AMP-mediated Triggered Activity as a Mechanism Responsible for Reperfusion Arrhythmias(再灌流不整脈の治療におけるジピリダモールの抗不整脈効果: 再灌流不整脈のメカニズムとしてCyclic AMP-mediated triggered Activityが関与する証拠)