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. 2014 Jul 18;18(4):R155. doi: 10.1186/cc13994

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Copyright © 2014 Leroy 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/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Kaplan-Meier curve of one-year survival for patients by ProVent score. X axis: number of days after day 21 of mechanical ventilation. Y axis: percentage of survival.