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. 2018 May 11;9:520. doi: 10.3389/fphys.2018.00520

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Copyright © 2018 Sack, Dabiri, Franz, Solomon, Burkhoff and Guccione.

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 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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Modified with permission from Topilsky et al. (2011). (A) a patient with low RPMs and normal, right shifted interventricular septum (traced out by the red line) compared to (B) a patient with markedly left-shifted septum (traced out by the red line). LV, left ventricle; RV, right ventricle; LA, left atrium; RA: right atrium.