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. 2021 Jul 28;8:837–850. doi: 10.2147/JHC.S308587

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© 2021 Yang et al.

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Kaplan-Meier curves for: (A) RFS; and (B) OS of patients in low, medium, and high-risk groups; Patterns of late recurrence in the study (C); Kaplan-Meier curves for: (D) OS of patients with and without ER.