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. 2022 Feb 24;9:820178. doi: 10.3389/fcvm.2022.820178

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Copyright © 2022 Chen, Huang, Zhao, Liang, Lu, He, Kang, Xie, Liu, Liu, Yang, Yu, Deng, Pan, Lu, Yang, Xie, Qian, Xu, Chen, Chen and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Worsening left ventricular ejection fraction (LVEF) and risk of mortality. The Kaplan–Meier curves for all-cause mortality in patients with heart failure with preserved ejection fraction (HFpEF) with and without worsening LVEF.