Fig. 2From: PD-L1 in pancreatic ductal adenocarcinoma: a retrospective analysis of 373 Chinese patients using an in vitro diagnostic assayKaplan-Meier plots of PD-L1 for OS and PFS. a Kaplan-Meier plot for OS showed that patients with PD-L1 positivity had significantly poorer OS than did PD-L1-negative individuals. b Kaplan-Meier plot for PFS showed that patients with PD-L1 positivity also had poorer PFS than did PD-L1-negative individuals. OS: overall survival; PFS: progression-free survivalBack to article page