The effect of pre-hospital glycoprotein IIb-IIIa inhibitors on angiographic outcome in STEMI patients who are candidates for primary PCI - Hermanides, R S; van Werkum, J W; Ottervanger, J P; Ongoing Tirofiban In Myocardial infarction Evaluation (On-TIME) 2 study group (Catheter Cardiovasc Interv, 2012)