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. 2016 Apr 21;6:24835. doi: 10.1038/srep24835

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Copyright © 2016, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Kaplan-Meier DFS (2A), OS (2B), LRFS (2C) and DMFS (2D) curves for 399 patients with NPC receiving IMRT stratified as the CR, PR and SD groups based on the local tumour response after induction chemotherapy. Abbreviations: DFS = disease-free survival; OS = overall survival; LRFS = local relapse-free survival; DMFS = distant metastasis-free survival. CR = complete response; PR = partial response; SD = stable disease.