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. 2021 Sep 24;14:124. doi: 10.1186/s13048-021-00881-2

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 4 — Construction and validation of the risk model. A LASSO Cox analysis. B λ selection diagram. The two dotted lines indicated two particular values of λ. The left side was λ_min and the right side was λ_1se. The λ_min was selected to build the model for accuracy in our study. C-E The K-M survival curves of total (C) and validation sets (D, E). F-H Time-dependent ROC curve analysis of total (F) and validation sets (G, H)