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In the version of this article originally published online and in print, the following sentence should have been included in the Figure 3 legend: Parts c, e, and h were previously published in Guagliumi, G. et al. Images in cardiovascular medicine. Sirolimus-eluting stent implanted in human coronary artery for 16 months: pathological findings. Circulation 107, 1340–1341 (2003). The error has been corrected in the HTML and PDF versions of the article.