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. 2016 Feb 9;14:46. doi: 10.1186/s12967-016-0803-2

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© Shingu 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. 2 — Increases of cell death by combination treatments in glioma tumor-initiating cells. GSC11 (a and c) and GSC20 (b and d) cells were treated with vehicle (control) or indicated drugs for indicated periods of time and analyzed with trypan blue dye exclusion assay to calculate percentage of dead cells. Data are expressed as the means of at least two independent experiments done in duplicate. Error bars are 95 % confidence intervals. *means p < 0.05 in ANOVA and Tukey’s post hoc test in comparison of combination treatment group with any of the other groups