Fig. 3From: A multivariable model of ultrasound and clinicopathological features for predicting axillary nodal burden of breast cancer: potential to prevent unnecessary axillary lymph node dissectionDevelopment and validation of a nomogram to predict axillary lymph node ≥ 3 metastasis. a Receiver operating characteristic curves of the model. b Calibration plot of the model. In the calibration plot, the dotted line at a 45° angle represents perfect calibrationBack to article page