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. 2018 Jul 9;19:132. doi: 10.1186/s12931-018-0838-4

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© The Author(s). 2018

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. 1 — Comparison between control and IPF subjects for (a) surface density, (b) relative telomere length (RTL) and volume fractions of (c) γ-H2A.X, (d) total collagen, (e) collagen 1, and (f) elastin. Grey scale colour identifies each individual subject. Points represent measurements for each sample while boxplot shows distribution of the mean measurement from each subject. * p < 0.5, *** p < 0.001