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Kaplan-Meier graph showing progression-free survival. (A) The median progression-free survival (PFS) of all patients (n = 26) was 5.22 months. (B) The median PFS of hormone receptor-positive (n = 16) and hormone receptor-negative (n = 10) patients was 5.88 months and 4.04 months, respectively, HR = 0.62, 95% CI (0.24–1.63), P = 0.32.
