This study sought to assess device-specific outcomes after implantation of bare-metal stents ( BMS ) , zotarolimus-eluting Endeavor Sprint stents ( ZES-S ) , paclitaxel-eluting stents ( PES ) , or everolimus-eluting stents ( EES ) ( Medtronic Cardiovascular , Santa Rosa , California ) in all-comer patients undergoing percutaneous coronary intervention .