Fig. 3From: Development and validation of a novel preoperative clinical model for predicting lymph node metastasis in perihilar cholangiocarcinomaDeveloped preoperative nomogram clinical model for predicting lymph node metastasis in pCCA patients. (A) Nomogram prediction model. (B) Calibration curve plots of the training cohort; (C) Calibration curve plots of the valitation cohortBack to article page