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. 2021 Dec 16;11:747496. doi: 10.3389/fonc.2021.747496

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Copyright © 2021 An, Zuo, Li, Chen and Wu

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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(A) graph showing the prognostic model for predicting 1-, 2-, and 3-year OS in all patients. (B) Calibration plots for the prognostic outcome. (C) ROC curve for internal validation.