Fig. 5From: Combined utility of Ki-67 index and tumor grade to stratify patients with pancreatic ductal adenocarcinoma who underwent upfront surgeryKaplan-Meier diagrams showing over survival for G-Ki67 with 3 categories in subgroups for T1 (A), T2 (B), N0 (C), N1/2 (D), stage I (E), and stage T1/2N1/2 (F). P-values for the log-rank test are shown in each panelBack to article page