Randomized trial of high loading dose of clopidogrel for reduction of periprocedural myocardial infarction in patients undergoing coronary intervention: results from the ARMYDA-2 (Antiplatelet therapy for Reduction of MYocardial Damage during Angioplasty) study - Patti, G; Colonna, G; Pasceri, V; Pepe, LL; Montinaro, A; Di Sciascio, G (Circulation, 2005)