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Kaplan–Meier survival curves of (a) overall survival (OS) and (b) progression-free survival (PFS) on median follow-up time of 25.9 months. (a) Median OS: 9.6 months (95% CI, 8.4–12.0), one-year OS: 39.8% (95% CI, 29.6–49.8), and two-year OS: 25.0% (95% CI, 16.4–34.7). (b) Median PFS: 3.7 months (95% CI, 2.6–4.6), one-year PFS: 26.0% (95% CI, 17.4–35.5), and two-year PFS: 19.6% (95% CI, 11.9–28.7).
