| Outcome Measures: |
Primary: The difference of antiplatelet effects assessed by VerifyNow assay, The difference of PRU values achieved following antiplatelet therapy, 14 days after study drug treatment | Secondary: The difference of antiplatelet effects assessed by light aggregometry assay, The difference of IPA values achieved following antiplatelet therapy, 14 days after study drug treatment|The difference of endothelial function assessed by forearm flow-mediated vasodilation (FMD) and peripheral arterial tonometry (PAT), The difference of endothelial functions achieved following antiplatelet therapy, 14 days after study drug treatment|The difference of anti-inflammatory biomarkers, The difference of hsCRP, CD40, P-selectin, and IL-6, 14 days after study drug treatment | Other: Adverse events, Adverse events such as bleeding, 6 weeks
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