Fig. 3From: Tumor burden score and carcinoembryonic antigen predict outcomes in patients with intrahepatic cholangiocarcinoma following liver resection: a multi‑institutional analysisComparison of the predictive value of TBS, CEA, and CTC grade in overall survival (OS) (a and c) and recurrence-free survival (RFS) (b and d) in the derivation cohort and validation cohort. CEA, carcinoembryonic antigen; CTC, combination of Tumor Burden Score and CEA; TBS, Tumor Burden ScoreBack to article page