CD274 and non-small cell lung carcinoma: The results of this study regarding PD-L1 expression assessed by TPS align with findings of a study by Lin et al. where PD-L1 expression by TPS ≥ 50%, 1% to 49%, and <1% was seen in 10.6%, 24.7%, and 64.7% cases, respectively, when evaluating 170 archival surgically resected NSCLC samples [24].