PDCD1LG2 and hepatocellular carcinoma: The stratified analyses indicated that high PD-L2 expression predicted poor DFS/PFS among patients with HCC (HR = 1.50, 95% CI = 1.04–2.16, P = 0.031) and ccRCC (HR = 1.45, 95% CI = 1.03–2.03, P = 0.033).