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. 2014 Nov 12;2:124. doi: 10.3389/fped.2014.00124

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Copyright © 2014 Jone and Ivy.

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) or licensor 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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Parasternal short axis view of the right and left ventricles at the level of the papillary muscles. The RV/LV ratio is derived from RV diameter and LV diameter at end-systole.