Fig. 1

One-year conditional of patients with pancreatic ductal adenocarcinoma (PDAC) after curative resection stratified (CS) by CEA, CA19-9, and tumor stage. a One-year CS by CEA (cut-off value, 20 ng/ml); b One-year CS by CA19-9 (cut-off value, 44U/ml); c One-year CS by stages I through III. The x-axis represents the time after curative resection