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. 2013 May 31;11:17. doi: 10.1186/1476-7120-11-17

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Copyright © 2013 Chow et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kaplan-Meier survival analysis for the Derivation Cohort. a: Kaplan-Meier survival curve of the Derivation Cohort: post-discharge following acute PE utilising a cut-off of RA/LA area ratio of 1.0 on Day 1 post PE adjusted for other variables in the multivariate model. p = 0.04. b: Kaplan-Meier survival curve of the Validation Cohort: post-discharge following acute PE utilising a cut-off of RA/LA area ratio of 1.0 on Day 1 post PE adjusted for other variables in the multivariate model. p = 0.04.