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. 2021 Apr;9(8):652. doi: 10.21037/atm-20-7037

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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 estimates of progression-free survival (PFS) and overall survival (OS). (A) PFS and OS of overall patient cohort. (B) Comparison of PFS between patients receiving the combination therapy as the first line treatment and those as the second to fourth line. (C) Comparison of PFS between patients receiving sintilimab plus TKIs synchronously and those receiving sintilimab after TKIs.