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Figure 1 This illustration shows the percentage intimal hyperplasia volume from trials of drug-eluting stents. The drug and its carrier vehicle (polymeric or nonpolymeric) and the name of the trial are shown. The time point of the intravascular ultrasound analysis ranged from 4 to 9 months after implantation depending on the trial. (By comparison, after implantation of bare metal stents percentage intimal hyperplasia volume averages 30%.) NO = nitric oxide; PC = phosphorylcholine.
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