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. 2021 Jun 8;9(6):e002345. doi: 10.1136/jitc-2021-002345

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See http://creativecommons.org/licenses/by-nc/4.0/.

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CD8+ T cell infiltration and PD-L1 expression in UPS tumors of head and neck compared with other sites. (A) Representative images and quantitation of IHC staining of UPS tumors for CD8. The number of CD8+ T cells mm² of tumor tissue is shown. (B) Representative images and quantifation of IHC staining of ups tumors for PD-L1. Per cent PD-L1 expression of tumor tissue is shown. Ι bars show the SE. P values were calculated using a two-tailed t-test. UPS, undifferentiated pleomorphic sarcoma; IHC, immunohistochemistry.