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. 2019 May 16;8(5):695. doi: 10.3390/jcm8050695

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Analysis of tumor-infiltrating lymphocytes. Immunohistochemical analysis of CD8 and CD4 (Original magnification, ×20). Typical examples of each staining are shown in both groups. Statistical analysis of each staining is shown. The number of CD8 (+) lymphocytes tends to be higher in the CS (+) group than in the CS (−) group, but the difference is not statistically significant (p = 0.052). The number of CD4 (+) lymphocytes shows no significant difference between the two groups (p = 0.28). Data represent the mean ± standard error of mean (CD4 and CD8, student’s t-test).