We designed a large scale registry-based randomized clinical trial to compare @ third-generation DES : a thin strut , cobalt-chromium DES with silicon carbide-coating releasing sirolimus from a biodegradable polymer ( O-SES , Orsiro ; Biotronik , Blach , Switzerland ) with the stainless steel biodegradable polymer biolimus-eluting Nobori stents ( N-BES , Nobori ; Terumo , Tokyo , Japan ) in an all-comer patient population .