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. 2015 Sep 17;10:195. doi: 10.1186/s13014-015-0502-9

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© Zhang et al. 2015

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. 4 — Tissue expression of IL-6. a Right lung samples demonstrated higher tissue IL-6 expression compared to the untreated control samples. b Left lung samples revealed upregulated tissue IL-6 expression. Immunohistochemical staining with anti-IL-6 antibody of c normal control and d right lung sample treated with helical tomotherapy with CCRT. ^* p <0.05; ^** p <0.01; IL, interleukin; CCRT, concurrent chemoradiotherapy; bars = 200 μm