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. 2021 Jan 11;10:583966. doi: 10.3389/fonc.2020.583966

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Copyright © 2021 Cao, Ren, Zhou, Mao, Lin, Wu and Sun

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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Classification of the triple-negative breast cancer immune microenvironment according to the expression of V-domain Ig suppressor of T cell activation (VISTA) on immune cells and CD4⁺ tumor-infiltrating lymphocytes (TILs). (A) VISTA+/CD4+. (B) VISTA+/CD4-. (C) VISTA-/CD4+. (D) VISTA-/CD4-.