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. 2015 Aug 12;10:167. doi: 10.1186/s13014-015-0473-x

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© Wohlleben 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 — Quantitative real-time RT-PCR data showing OPN RNA expression under normoxic (N = 21 % O₂) and hypoxic (H = 0.1 % O₂) conditions 24 h and 48 h after irradiation (IR) with 0, 2 and 8 Gy in U251 (a) and U87 (b) glioblastoma cell lines. *marks statistical differences between normoxic and hypoxic conditions on the corresponding dose levels (ANOVA; p < 0.05)