Bivalirudin and clopidogrel with and without eptifibatide for elective stenting: effects on platelet function, thrombelastographic indexes, and their relation to periprocedural infarction results of the CLEAR PLATELETS-2 (Clopidogrel with Eptifibatide to Arrest the Reactivity of Platelets) study - Gurbel,P.A.; Bliden,K.P.; Saucedo,J.F. (J Am Coll Cardiol, 2009)