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. 2019 Dec 18;11:10573–10580. doi: 10.2147/CMAR.S227684

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© 2019 Ma et al.

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Kaplan–Meier analysis of overall survival in patients who underwent metastasectomy according to the residual disease state. The residual disease state of each patient was documented as the presence or absence of gross residual disease, which was classified as negative resection margins (R0), microscopic tumor infiltration (R1), and macroscopic residual tumor (R2).