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. 2017 Apr 12;17:263. doi: 10.1186/s12885-017-3272-y

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© The Author(s). 2017

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 — Flow diagram of patient selection. The flow diagram illustrating the inclusion process of the patients with lung adenocarcinoma into the study. Three hundred and four patients were included into serum analysis and 172 patients were included into genomic analysis, with 122 patients included into both analysis