Fig. 4From: Development and external validation of a nomogram for predicting the effect of tumor size on survival of patients with perihilar cholangiocarcinomaComparison of the ROC curves of the nomogram and the TNM stage system for 1-,3- and 5-year CSS in training cohort (a, b, c) and external validation cohort (d, e, f). Decision curve analysis of nomogram and TNM stage in patients with PCCA in training cohort (g) and external validation cohort (h)Back to article page