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. 2015 Feb 13;10(2):e0116803. doi: 10.1371/journal.pone.0116803

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© 2015 Wu et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A), CXCR4 expression (P = 0.003) (B) and EGFR/CXCR4 coexpression (P<0.001) (C). OS according to EGFR expression (P = 0.161) (D), CXCR4 expression (P<0.001) (E) and EGFR/CXCR4 coexpression (P<0.001) (F).