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Kaplan–Meier analysis of (A, B) disease-free survival and (C, D) overall survival of patients who underwent pancreatectomy for pancreatic ductal adenocarcinoma stratified by the prediction scoring system. (E) ER developed in 7 (11.9%) patients in the low-risk group and in 47 (50.0%) patients in the high-risk group. ER, early recurrence.
