Fig. 1From: Serum levels of soluble programmed death-ligand 1 (sPD-L1) in patients with primary central nervous system diffuse large B-cell lymphomaa Comparison of serum sPD-L1 between patients with PCNSL (n = 68) and the healthy control group (P < 0.01). b The distribution of serum sPD-L1 in 68 patients. c The ROC curve of sPD-L1 for overall survival. d, e The overall survival and progression-free survival in the high sPD-L1 group were lower than those in the low sPD-L1 groupBack to article page