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. 2016 Mar 8;16:197. doi: 10.1186/s12885-016-2222-4

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© Fukui et al. 2016

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. 1 — Kaplan–Meier Analysis-based Estimates of Survival Based on Prognostic Factors. 1-1. Comparison of survival between patients having small (≤3 cm) primary tumors (blue) and those having large (>3 cm) primary tumors (red). 1-2. Comparison of survival between patients having single sites of a distant metastasis (blue) and those having multiple (two or more) sites of distant metastases (red). P-values were determined by the log-rank test; the number of individuals and the survival times (median (95 % confidence interval), months (mo)) in each group are indicated