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. 2015 Nov 16;15:903. doi: 10.1186/s12885-015-1924-3

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© Wu et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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. 2 — Kaplan-Meier analysis of the impact of CD44s expression on overall survival in patients with ampullary adenocarcinoma. a Overall survival curve of all patients with ampullary adenocarcinoma who underwent surgery by CD44s expression levels (P = 0.6020). b Overall survival curve of ampullary cancer patients without pancreatic invasion. Patients with moderate or dense CD44s expression had decreased overall survival (P = 0.0268). c Overall survival curve of ampullary cancer patients with pancreatic invasion. Patients with moderate or dense expression of CD44s had a trend toward increased survival although it was not significant (P = 0.1512)