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Validation of the nomogram. (a, b) Calibration curves of the nomogram for predicting OS at 3 years (a) and 5 years (b). (c, d) The accuracies of the nomogram, BCLC stage and TNM stage at 3 years (c) and 5 years (d) were evaluated by ROC analyses. (e, f) The DCA results showed that the nomogram had the highest benefit compared to the BCLC stage and TNM stage.
