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. 2017 Oct 10;17:130. doi: 10.1186/s12890-017-0476-5

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 3 — Correlation between baseline FVC (panel a), DLCO (panel b), GAP index (panel c), ILD etiology (panel d), power developed at endurance test (ET) (panel e), distance covered at 6MWDT panel f) and change in 6MWDT distance (%) after PR. Statistical significant is indicated by p value while correlation is indicated by the Pearson’s correlation coefficient r