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. 2017 Jun 27;14(3):2709–2714. doi: 10.3892/ol.2017.6482

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Copyright: © Shi et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 1. — RA enhances the effects of TMZ on the U251 cell proliferation. (A) Growth inhibition of the U251 cells was analysed following exposure to TMZ treatment and RA+TMZ administration for 48 h. (B) Morphological changes of cells following exposure to TMZ treatment and RA+TMZ administration for 48 h. Statistically significant difference (*P<0.05). RA, retinoic acid; TMZ, temozolomide.