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. 2016 Feb 4;17:14. doi: 10.1186/s12931-016-0328-5

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© Lehtonen et al. 2016

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. 7 — Effect of combined therapy on cell proliferation. The stromal cells from four control lungs (a) and four IPF lungs (b) were treated with 0.5 mM pirfenidone, 0.5 μM nintedanib or both drugs simultaneously. (*p < 0.05, KW test)