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Microscopic findings in a resected tumor. Scale bars 100 μm. (a) Hematoxylin and eosin (H&E) staining. (b) SMARCA2 (INI1) staining. (c) SMARCA4 (BRG1) staining. (d) Programmed cell death ligand 1 (PD‐L1) staining. (e) CD4 staining. (f) CD8 staining.
