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. 2020 Sep 18;20(5):107. doi: 10.3892/etm.2020.9225

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Copyright: © Bae et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Kaplan-Meier survival analysis for expression of HLA-DRB4, HLA-DQA1 and HLA-DQB1 detected via immunohistochemistry. (A) Survival curves by HLA-DRB4 expression indicated no significant association with prognosis (P=0.489). (B) HLA-DQA1 expression was significantly associated with an increase in the survival rate (P=0.028). (C) Survival curves by HLA-DRB1 expression indicated no significant association with prognosis (P=0.500). Blue line, CPS-negative expression group; green line, CPS-positive expression group. CPS, combined positive score; HLA, human leukocyte antigen. Patient follow-up was conducted from the date of surgery until final follow up date identified in medical records; the date of death or the last visit to the hospital. The follow-up period ranged from 4 to 122 months (mean, 68.3 months). CPS, combined positive score; HLA, human leukocyte antigen.