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Cumulative RFS rate. The corresponding RFS rates at one, three and five years after PC and SR were 83.33, 45.83 and 29.17%, respectively, in the PC group and 84.48, 48.28 and 32.76%, respectively, in the SR group. No significant differences were observed between the two groups, as determined using the log-rank test (P=0.875). RFS, recurrence-free survival; PC, percutaneous cryosurgery; SR, surgical resection.
