Fig. 5From: Development and validation of a cancer stem cell-related signature for prognostic prediction in pancreatic ductal adenocarcinomaCox regression analyses of the signature in four datasets. a Univariate and b multivariate Cox regression analyses of risk score and clinical features. c Distribution of risk scores in PDAC patients stratified by histological grade. *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001Back to article page