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. 2020 Mar 11;27(1):1073274820906811. doi: 10.1177/1073274820906811

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© The Author(s) 2020

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Comparison of the total numbers and the activities of natural killer (NK) cells across different pathological stages before surgery. A, The number of NK cells in blood (absolute counts/µL) were measured by flow cytometry. B, Their lysis activities (LU₃₅) were quantified in a standard assay. The data were presented as mean with standard deviation. Statistical analysis: *P < .05 among the pathological stages per analysis of variance (ANOVA).