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. 2018 Oct 5;51(2):832–840. doi: 10.4143/crt.2018.311

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Copyright © 2019 by the Korean Cancer Association

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1. — Overall survival according to pre-chemotherapy soluble programmed death-ligand 1 (sPDL1). Baseline sPDL1 is correlated with overall survival in entire cohort (A), training cohort (B), and validation cohort (C). Cut-off value of sPDL1 is 1.30 ng/mL in three cohorts. High sPDL1 at pre-chemotherapy confers worse overall survival.