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Figure 3 Clopidogrel Resistance
Data presented according to 3 definitions of resistance: <10%, <20%, and <40% decrease in peak platelet aggregation. (A) 5 µmol/l ADP; (B) 20 µmol/l ADP. Group A, clopidogrel 300 mg the day before ( 15 h) + 75 mg the morning of the interventional procedure; Group B, clopidogrel 600 mg the morning of (2 h before) the interventional procedure; Group C, clopidogrel 600 mg the day before (15 h) and 600 mg the morning of (2 h before) the interventional procedure. Significant differences between Groups A versus C and Groups B versus C were found for 5 µmol/l and 20 µmol/l adenosine diphosphate (see text for details).
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