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Figure 4 Time course of the rate of platelet aggregation after stimulation with 50 µmol/liter of thrombin receptor activating peptide, as assessed by turbidimetric aggregometry during and after infusion of abciximab for 12 h (solid circles), tirofiban for 72 h (solid diamonds) or eptifibatide for 72 h (solid triangles). The plot shows the mean value ± SD. At 24, 48 and 72 h, the differences between the three agents were statistically significant (p < 0.002).