Övünç et al. wish to correct an error in their submission, “Multiple coronary artery aneurysm formation one year and four years after sirolimus-eluting coronary stent implantation.” ( Cardiovasc Revasc Med 2009;10:252-254 ) The authors incorrectly stated that the size of the Cypher (Cordis, Johnson & Johnson) stent used was 2.75×10 mm, when in fact, it was 2.75×13 mm in diagonal artery and 3.0×13 mm in left anterior descending artery.