<qa>  What is the standard dual antiplatelet regimen?To assess whether two doses of dabigatran etexilate 110 mg twice daily b.i.d and 150 mg twice daily b.i.d as compared to unfractionated heparin UFH, both in addition to a standard dual antiplatelet regimen, provide sufficient anticoagulation in the setting of elective percutaneous coronary intervention PCI. 