Wang Y, Lu H, Li M. Expression of PD-L1 and PD-1 in stage T4 rectal cancer tissues and surrounding metastatic lymph nodes and correlation with prognosis: PD-L1 and PD-1 in rectal cancer tissues . Cell Mol Biol (Noisy-le-grand) [Internet]. 2022 Aug. 31 [cited 2024 Nov. 22];68(8):74-8. Available from: https://cellmolbiol.org/index.php/CMB/article/view/4496