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Kaplan–Meier curves for overall survival in patients submitted to resection of non-pancreatic periampullary adenocarcinoma with (dotted line) and without (black line) intra-arterial chemotherapy and concomitant radiotherapy (IAC/RT) (log-rank test, P = 0.077; hazard ratio 0.44, 95% confidence interval 0.23–0.83; P = 0.011)
