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PD-L1 and pS6 expression in NSCLC patients’ CTCs. (A) CTCs stained with CK (red), PD-L1 (green) and CD45 (grey). Nuclei (blue) were stained with DAPI. (B) CTCs stained with CK (red), pS6 (green) and nuclei (blue). The overlay of all images is also presented. Scale bars = 10 μm.
