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. 2016 May 5;16(1):63–73. doi: 10.1177/1534735416645180

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© The Author(s) 2016

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) 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 page(https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 5. — Meta-analysis of 6-minute walk distance (6WMD). It shows the changes of 6MWD stratiﬁed by follow-up time after exercise training. A demonstrates shows the changes of 6WMD in preoperative exercise training patients. B shows the changes of 6WMD in postoperative exercise training patients. CI, conﬁdence interval; IV, inverse variance; SD, standard deviation.