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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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Strain orientation and strain–time curves of LV, RV, and septum for one cardiac cycle. (A) Circumferential strain. (B) Longitudinal strain. (C) Radial strain.