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. 2017 Mar 28;7:45554. doi: 10.1038/srep45554

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Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(A) Discovery cohort. (B) Validation cohort. C-index estimates for clinical variables (age at the time of surgery, tumor size, number of LN metastases, histologic grade, ER and PR levels by IHC), the prognostic models (NPI score, PREDICT, and SNAP), and the BCT score are shown. ER: estrogen receptor, IHC: immunohistochemistry, LN: lymph node, PR: progesterone receptor.