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. 2019 Nov 8;9:1193. doi: 10.3389/fonc.2019.01193

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Copyright © 2019 Xie, Xiong, Li, Huang, Ye, Tang and Xie.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Proposed nomogram to predict the probability of IMLN metastasis after mastectomy in patients with breast cancer. (A) Nomogram was build to predict IMLN status for BC patients, with the tumor location, LVI and pALN stage incorporated. Calibration plots for nomogram model in (B) training cohort and (C) validation cohort. The dashed line (the 45-degree line) represents a perfect prediction nomogram, and the black solid line represents the observed nomogram, of which a closer fit to the dashed line means a better prediction model. Plots (D) and (E) show the ROC curves of the constructed nomogram in the training and validation cohorts, respectively. UIQ, upper inner quadrant; LIQ, lower inner quadrant; UOQ, upper outer quadrant; LOQ, lower outer quadrant.