THE ANTIPLATELET EFFECT OF HIGHER LOADING AND MAINTENANCE DOSE REGIMENS OF CLOPIDOGREL: THE PLAVIX RESPONSE IN CORONARY INTERVENTION (PRINC) TRIAL - Gladding, PA; Webster, MWI; Zeng, I; Stewart, J; Ruygrok, P; Ormiston, J; El-Jack, S; Armstrong, G; Kay, P; Scott, D (Heart, Lung & Circulation, 2008)