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The survival analyses of RFS and OS after PSM. (A) Kaplan-Meier RFS curves, (B) Kaplan-Meier OS curves, (C) multivariable Cox survival analysis RFS curves, and (D) multivariable Cox survival analysis OS curves by anesthesia method after PSM. RFS, recurrence-free survival; OS, overall survival; PSM, propensity score matching.
