The early and late phases of ischemic preconditioning - A comparative analysis of their effects on infarct size, myocardial stunning, and arrhythmias in conscious pigs undergoing a 40-minute coronary occlusion. - Qiu,Y.M.; Tang,X.L.; Park,S.W.; Sun,J.Z.; Kalya,A.; Bolli,R. (Circ Res, 1997)