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Figure 4 Percent disaggregation from peak aggregation to six min after the addition of adenosine 5'-diphosphate (ADP) (top) and thrombin receptor agonist peptide (TRAP) (bottom) in healthy volunteers, at baseline on Day 1, 24 h after the first drug administration on Day 2, and 24 h after the last drug administration on Day 3. Open boxes are either at baseline or after placebo, boxes with diagonal lines are after aspirin, boxes with vertical lines are after clopidogrel (doses shown in Fig. 1, and an actual tracing in Fig. 2). The horizontal lines are medians, the boxes are the interquartile range, whiskers are the 5th and 95th percentiles, and p values were obtained by the Wilcoxon signed-rank test; *p < 0.05.