Fig. 5From: Surrogacy of one-year survival for overall survival in advanced hepatocellular carcinomaSubgroup analysis in trials with progression-free survival (PFS) hazard ratio ≤ 0.6. The correlation was insufficient between PFS and overall survival (OS) (A, B). One-year milestone survival strongly correlated with OS in HCC trials with PFS HR ≤ 0.6 (C, D)Back to article page