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. 2014 Nov 11;105(12):1638–1646. doi: 10.1111/cas.12552

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© 2014 The Authors. Cancer Science published by Wiley Publishing Asia Pty Ltd on behalf of Japanese Cancer Association.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Fig. 2 — Kaplan–Meier survival curves are shown for overall survival (a) and disease-free survival (b) in patients with esophageal squamous cell carcinoma according to alcohol drinking status. Kaplan–Meier survival curves are shown for overall survival (c) and disease-free survival (d) in patients with esophageal adenocarcinoma according to alcohol drinking status. P-values were calculated using the unadjusted log–rank test.