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. 2018 Nov 20;16:320. doi: 10.1186/s12967-018-1689-y

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© The Author(s) 2018

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. 4 — Kaplan–Meier curves of progression-free survival in total and R-CHOP-treated diffuse large B cell lymphoma patients. Survival analysis for progression-free survival (PFS) according to PD-L1t in total cohort (n = 107) (a) and R-CHOP cohort (n = 93) (b), and according to PD-L1i in total cohort (c) and R-CHOP cohort (d). Survival analysis for PFS according to pSTAT3 (40% cutoff) in total cohort (e) and R-CHOP cohort (f). *T: tumor cell; I: immune cell