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. 2014 Nov 4;12:309. doi: 10.1186/s12967-014-0309-8

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© Zhu et al.; licensee BioMed Central Ltd. 2014

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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Kaplan-Meier survival estimate by clinicopathological factors for 108 PDAC patients who underwent pancreaticoduodenectomy and survived at least 30 days after surgery. The p value was calculated by the Log-rank test. The correlation between survival and tumor location (A), tumor differentiation (B), TNM staging (C), serum level of CA19-9 (D), serum level of CA50 (E), serum level of CEA (F), MUC4 mRNA expression status (G), respectively, among which the P value of serum level of CA50 lied in the critical (P = 0.054).