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Kaplan-Meier curves of PFS in PR-positive patients. Note that an absence of stromal Cav-1 immunostaining also predicts poor clinical outcome in PR-positive patients (P = 1.18 × 10−5, log-rank test), which represents a total of 65 breast cancer patients. 5-year PFS is indicated by an arrow. The status of epithelial Cav-1 is shown for comparison. n.s., denotes not significant.
