Fig. 5From: Octamer-binding transcription factor 4-positive circulating tumor cell predicts worse treatment response and survival in advanced cholangiocarcinoma patients who receive immune checkpoint inhibitors treatmentUnivariate and multivariate Cox regression analyses of OS in advanced CCA patients. Univariate Cox regression analysis was used to predict OS (A); multivariate Cox regression analysis was used to identify independent predictors of OS (B) in advanced CCA patientsBack to article page