Abstract: The original version of this article unfortunately contained a mistake. In the 6th paragraph of Section “4 Evaluation of PCI status in 2009”, the underlined data in “Online data showed that unstable angina, non-ST elevation myocardial infarction (NSTEMI), and ST elevation myocardial infarction (STEMI) occupied 54%, 29%, and 6% of the total PCI cases, respectively, 79% when added together.” were incorrect. The correct version is given below: Online data showed that unstable angina, non-ST elevation myocardial infarction (NSTEMI), and ST elevation myocardial infarction (STEMI) occupied 54%, 6%, and 29% of the total PCI cases, respectively, 89% when added together.
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