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. 2015 Jul 16;15:521. doi: 10.1186/s12885-015-1537-x

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© Shibutani et al. 2015

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — The Kaplan-Meier survival curves according to the postoperative PNI in the exploratory study. The overall survival rates were significantly worse in the low postoperative PNI group (p < 0.0001)