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Figure 1 Cumulative survival in 253 patients after mechanical revascularization for acute myocardial infarction stratified by myocardial blush grades (MBG, left), corrected TIMI frame counts (CTFC, middle) and persistent ST-segment elevation in 2 or >2 electrocardiographic (ECG) leads after PTCA (percutaneous transluminal coronary angioplasty) (ECG post PTCA, n = 220, right). P values represent log-rank for trend. MI = myocardial infarction.