CD274 and neoplasm: In the univariate analysis, tumor size (p < 0.001), vascular invasion (p < 0.001), neural invasion (p = 0.005), PD-L1 expression (p < 0.001), T category (p =0.007), lymph node status (p = 0.029), distant metastasis (p < 0.001), pTNM stage (p = 0.002), peritumoral TLSs maturation (p < 0.001), and intratumoral TLSs maturation (p < 0.001) were significantly associated with the overall survival of EBVaGC patients (Table S2; Figures 3 and S5).