PIK3CG and coronary artery disorder: A lot of researches have signified the effectiveness of genotyping in predicating individual drug response.[24,25] Evidence also supported correlations between adverse cardiovascular events and interindividual drug response to antiplatelet clopidogrel.[26,27] In this study, we explore the association between PIK3CG polymorphisms and the antiplatelet responsiveness of clopidogrel, in hopes of paving a way for novel findings for the evaluation of interindividual drug responsiveness in patients suffering from CHD.