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. 2018 Feb 21;24(7):810–818. doi: 10.3748/wjg.v24.i7.810

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©The Author(s) 2018. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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Overall survival by circulating tumor cell count. Patients with > 17 CTCs isolated from cryopreserved specimens had a poorer overall survival compared to those with ≤ 17 CTCs (median OS 2.8 mo vs 23.2 mo, HR = 4.4, 95%CI: 1.7-11.7, P = 0.0013). OS: Overall survival; CTC: Circulating tumor cell.