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(A) Kaplan-Meier analysis of progression-free survival comparing ECOG0/1 vs. ECOG2/3 status across all patients. (B) Kaplan-Meier analysis of progression-free survival comparing patients with prior endocrine therapy. P = .003 by log-rank. (C) Kaplan-Meier analysis of progression-free survival comparing patients with prior chemotherapy. P = .036 by log-rank.
