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. 2019 May 14;12:3671–3682. doi: 10.2147/OTT.S190168

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© 2019 Yang et al.

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Forest plot describing the association between PD-L1 expression and prognosis of patients with CRC patient. (A) OS; (B) OS by multivariate analysis; (C) RFS/DFS; (D) RFS/DFS by multivariate analysis.