Figure 1.

Kaplan–Meier survival curves. (a) Progression-free survival (PFS); the median PFS is 4 months (95% confidence interval (CI), 3.487–4.513). (b) Overall survival (OS); the median OS is 11 months (95% CI, 9.226–12.771).

Kaplan–Meier survival curves. (a) Progression-free survival (PFS); the median PFS is 4 months (95% confidence interval (CI), 3.487–4.513). (b) Overall survival (OS); the median OS is 11 months (95% CI, 9.226–12.771).