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. 2017 Aug 20;130(16):1945–1952. doi: 10.4103/0366-6999.211896

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Copyright: © 2017 Chinese Medical Journal

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

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Kaplan-Meier survival curves of prognostic Stage I and II altered from anatomic Stage I by using the AJCC 8^th edition. (a) Kaplan-Meier survival curves for DFS (P=0.507). (b) Kaplan-Meier survival curves for OS (P=0.216). DFS: Disease-free survival; OS: Overall survival; AJCC: American Joint Committee on Cancer.