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. 2021 Oct 15;28:10732748211050581. doi: 10.1177/10732748211050581

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© The Author(s) 2021

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Forest plots of the association between pretreatment CTCs status and prognosis in patients with SCLC. (A, B) the impact of higher pretreatment CTCs level detected by CellSearch (A) and other methods (B) and OS; (C, D) the impact of higher pretreatment CTCs level detected by CellSearch (C) and other methods (D) on PFS. CTCs, circulating tumor cells; SCLC, small cell lung cancer; OS, overall survival; PFS, progression-free survival.