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. 2018 Sep 19;9:1295. doi: 10.3389/fphys.2018.01295

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Copyright © 2018 Zou, Xi, Zhao, Koh, Gao, Su, Tan, Allen, Lee, Genet and Zhong.

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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ROC curves of all strain parameters and LVEF for differentiating normal controls with HFpEF patients. LVEF, left ventricular ejection fraction; ε_CC^RV, right ventricular peak circumferential strain; ε_CC^LV, left ventricular peak circumferential strain; ε_CC^Sep, septum peak circumferential strain; ε_LL^RV, right ventricular peak longitudinal strain; ε_LL^LV, left ventricular peak longitudinal strain; ε_LL^Sep : septum peak longitudinal strain; ε_RR^RV, right ventricular peak radial strain; ε_RR^LV, left ventricular peak radial strain; ε_RR^Sep, septum peak radial strain.