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. 2022 Dec 23;72(6):1603–1618. doi: 10.1007/s00262-022-03346-7

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© The Author(s) 2022

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Fig. 4 — Overview of counts for CD4 + tumor-infiltrating lymphocytes (TILs). Each bar represents mean and standard error of TIL counts in tumor areas indicated (see Fig. 2A), subdivided into stromal TILs (sTILs) and intratumoral TILs (iTILs) and for primary tumors, local recurrences and metastases. For each region, five 40 × HPFs were counted