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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. 4 — The overall survival subdivided according to the preoperative and postoperative PNI in exploratory study. The patients in group A exhibited a better prognosis than those in groups B and D (*, p = 0.0005; ***, p = 0.0003). The patients in group C exhibited a better prognosis than those in group D (**, p = 0.0163)