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. 2020 May;8(10):635. doi: 10.21037/atm-20-2372

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2020 Annals of Translational Medicine. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0.

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Kaplan-Meier curves of survival in patients without severe illness according to binary risk group stratification by (A) NLR (low risk: <4.87; high risk: ≥4.87), (B) CRP (low risk: <25.96; high risk: ≥25.96), (C) Combined Index in the training set (low risk: <0.66; high risk: ≥0.66) and (D) Combined Index in the validation set (low risk: <0.66; high risk: ≥0.66). The mean survival time according to Kaplan-Meier curves is shown in Table S1. CRP, C-reactive protein; NLR, neutrophil-to-lymphocyte ratio.