Prognostic value of programmed death-ligand 1 (PD-L1) expression in patients with stage III colorectal cancer.

2016 
3568Background: The programmed death-1 (PD-1)/PD-L1 pathway is a negative feedback mechanism that suppresses the activity of T cells. PD-L1 was expressed on tumor cells (TCs) or tumor-infiltrating ...
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