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Overall survival (right) and progression‐free survival (left) of the whole cohort. As shown in the Kaplan‐Meier curves, the 1‐, 2‐, and 3‐year PFS rates for all patients were 56.9%, 29.8%, and 27%, respectively. The 1‐, 2‐, and 3‐year OS rates were 78.5%, 59.7%, and 49.7%, respectively. The median PFS was 13.94 months (95% confidence interval [CI], 0.75–51.05), and the median OS was 27.43 months (95% CI, 5.278–49.58).Abbreviations: OS, overall survival; PFS, progression‐free survival.
