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. 2018 Apr 18;12:1179546818771700. doi: 10.1177/1179546818771700

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© The Author(s) 2018

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — M-mode echocardiography simultaneously displays the movements of the RV and LA close to the atrioventricular junction. Arrows indicate right ventricular and left atrial contractions. M-mode indicates 1:1 atrioventricular conduction. Ao, aorta; LA, left atrium; LV, left ventricle; RV, right ventricle.