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Figure 1 Kaplan-Meier survival analysis: plot of proportion of cumulative survival free from primary end point events in patients treated with high-dose bolus (HDB) tirofiban (solid line) and placebo (dotted line). The difference in the incidence of events emerged soon after the procedure. At month 6, the hazard ratio was 0.51 (95% confidence interval 0.29 to 0.88, p = 0.01 by the log-rank test).