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Kaplan-Meier graph of overall survival (OS) with 90% confidence limits shown as dashed lines. Median OS was 19.3 months, with 90% confidence interval (CI) 9.1 to 107.3 months. The 2-year OS rate was 42%, with 90% CI 0.20 to 0.64. The 5-year OS rate was 34%, with 90% CI 0.12 to 0.57. Two patients are currently still alive at 74.4 and 103.4 months after surgery.
