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. 2021 Feb;9(4):339. doi: 10.21037/atm-21-49

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2021 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 univariate analysis of progression-free survival (PFS). (A) Influence of treatment time on PFS. (B) Influence of serum lactate dehydrogenase (LDH) level on PFS. (C) Influence of combination strategies on PFS.