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A. Kaplan-Meier estimate of freedom from local recurrence rate demonstrating a significantly higher rate in the SRS study arm compared with the observation (OBS) arm. B. Kaplan-Meier estimate of overall survival demonstrating no difference between the SRS and OBS study arms. C. Kaplan-Meier estimate of freedom from distant brain metastasis demonstrating no difference between the SRS and OBS arms. (ev= events; mon= months).
