CD274 and non-small cell lung carcinoma: Nevertheless, the expression of PD-L1 (HR = 1.497, 95% CI 0.573–3.908, P = 0.347, Fig. 6C), B7-H3 (HR = 1.201, 95% CI 0.572–2.523, P = 0.630, Fig. 6D) and EphA2 (HR = 1.299, 95% CI 0.602–2.802, P = 0.482, Fig. 6G) in NSCLC brain metastases patients did not have a significant relationship with the OS.