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. 2021 Apr 3;10(7):1486. doi: 10.3390/jcm10071486

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Kaplan–Meier curves of 30-days major adverse cardiac and cerebrovascular events (MACCE) in patients undergoing prolonged non-occlusive (non-CTO, Panel A) and chronic occlusive (CTO, Panel B) percutaneous coronary interventions (PCI).