Fig. 4From: Tumor burden score and carcinoembryonic antigen predict outcomes in patients with intrahepatic cholangiocarcinoma following liver resection: a multi‑institutional analysisCumulative overall survival (OS) and recurrence-free survival (RFS) curves by CTC grading for American Joint Committee on Cancer (AJCC) stages I (a, b), II (c, d), and III/IV (e, f) patients in the derivation cohort, respectively. CTC, combination of Tumor Burden Score and carcinoembryonic antigenBack to article page