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. 2015 Sep 28;34:54. doi: 10.1186/s40880-015-0054-2

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© Li 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. 3 — Kaplan–Meier survival curves for 1601 patients with curatively resected non-small cell lung cancer. a Group 1 (patients with the blood type O or B) had significantly prolonged overall survival compared with group 2 (patients with the blood type A or AB). b Group 1 had significantly prolonged disease-free survival compared with group 2. c Group 1 had significantly prolonged locoregional relapse-free survival compared with group 2. d No significant difference was observed for distant metastasis-free survival between groups 1 and 2