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. 2015 Aug 21;13:253. doi: 10.1186/s12957-015-0656-9

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© Hsu et al. 2015

Open Access This 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 — Survival curves in 130 OSCC patients related to the preoperative CYFRA 21-1. a The lower CYFRA 21-1 group (<3.3 ng/mL) showed better DFS compared to the higher CYFRA 21-1 level group (≥3.3 ng/mL) (P = 0.124). b The lower CYFRA 21-1 group showed similar OS compared to the higher CYFRA 21-1 level group (P = 0.665)