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. 2019 Apr 9;9:255. doi: 10.3389/fonc.2019.00255

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Copyright © 2019 Wei, Liu, Rong, Zhou, Bai, Wei, Wang, Wang, Guo and Tian.

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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Time-dependent ROC curve and calibration curves. Time-dependent ROC curve for the radiomic signature predicting 3-year (A) PFS and 18-month (B) PFS in the WCSUH-SCU training cohort, WCSUH-SCU internal validation cohort, and the HNPPH independent external validation cohort. Time-dependent ROC curve for the radiomic nomogram predicting 3-year (C) PFS and 18-month (D) PFS in the training cohort compared with the predictive models based on clinical characteristics. Calibration curves of 3-year (E) and 18-month (F) time-dependent ROC curve of radiomic nomogram and radiomic signature. ROC curve, receiver operating characteristic curve; WCSUH-SCU, West China Second University Hospital of Sichuan University; HNPPH, Henan Provincial People's Hospital. PFS, Progress Free Survival.