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Figure 1 Aggregation (mean percent ± SEM) with adenosine diphosphate (A), collagen (B), or epinephrine (C) in study subjects by treatment strategy. Significant differences under different conditions of blockade were noted. Multiple comparisons (six included in adjustment per plot) at each agonist’s concentrations revealed significant differences (p < 0.05) between treatment strategies as indicated. *Applies for differences between treatment with acetylsalicylic acid (ASA) and with clopidogrel. Applies for differences between treatment with clopidogrel and with ASA plus clopidogrel in combination. Applies for differences between treatment with ASA and with ASA plus clopidogrel in combination.