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Harmonization of clinical sTIL and PD-L1 assays with mIF. Correlation scatterplot of sTIL (H&E) and sTIL (mIF) for pre-treatment (a) and post-treatment (b) with fitted linear regression lines. Mean PD-L1 mIF score comparison between PD-L1 SP142 category (IC 0, IC1, IC2/3) for pre-treatment (c) and post-treatment (d) using Jonckheere-Terpstra test. sTIL: stromal tumor-infiltrating lymphocyte; mIF: multiplex immunofluorescence; IC: immune cell; PD-L1: programmed death ligand 1
