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. 2019 Jul 29;20(4):2990–3002. doi: 10.3892/mmr.2019.10535

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Copyright: © Xie et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 1. — Flow diagram of the study design. KM, Kaplan-Meier; Lasso, least absolute shrinkage and selection operator. PCC, Pearson correlation coefficient analysis.