This multicenter, prospective, observational registry will evaluate the safety and performance of the CYPHER SELECT™ Sirolimus-eluting Coronary Stent, and of all future generation of commercially approved Cordis Sirolimus-eluting Stents (SES), in routine clinical practice. Its objective is to measure the incidence and identify the predictors of acute, sub-acute and late stent thrombosis and Major Adverse Cardiac Events (MACE). Additional analyses will be performed in patient sub-populations, such as diabetes, in-stent restenosis (ISR), acute myocardial infarction (AMI) and multivessel coronary disease.