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. 2020 Mar 13;10:311. doi: 10.3389/fonc.2020.00311

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Copyright © 2020 Yue, Zhang, Shi, Liu, Li, Wang, Qin, Ping, Qiao, Chen, Wang, Chen, Zhao, Wang and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Kaplan-Meier survival analysis in patients with ESCC. (A) Representative immunohistochemical staining of CXCR4 expression in ESCC tissues and their corresponding non-cancerous tissues (magnification, ×100). (B) Kaplan-Meier analysis indicating the correlation of CXCR4 overexpression with poorer overall survival of ESCC patients.