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Figure 2 Kaplan-Meier depiction of the event restenosis for the 219 angioplasties (only 174 had follow-up angiograms). The parametric hazard model is plotted (survival and hazard) as the smooth curve. Error bars and parametric confidence limits are 70%. The number of vessels still at risk of restenosis is noted at the bottom of the plot. PCI = percutaneous coronary intervention.
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