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. 2021 Oct 18;11:743540. doi: 10.3389/fonc.2021.743540

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Copyright © 2021 Yang, Tian, Su, Li, Gong, Shi, Zhang, Zhao and Zhao

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Representative immunohistochemical staining of tumor tissue for CD8, CD163, and Foxp3 in non-pCR group (A) and pCR group (B) in 400x hpf. (C)Frequencies of CD8+, CD163+, and Foxp3+ cells in tumor of two groups.