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. 2019 Nov 29;9:1343. doi: 10.3389/fonc.2019.01343

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Copyright © 2019 Xu, Zhang, Li, Chen, Mao, Guo, Liu, Ma and Tang.

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 OS curves of IC+CCRT vs. CCRT in the overall T3N0, T3N1, and T4N0 NPC (A), low- (B) and high-risk groups (C). HR, hazard ratio; CI, confidence interval; OS, overall survival; IC, induction chemotherapy; CCRT, concurrent chemoradiotherapy.