Fig. 8From: Estrogen receptor-negative/progesterone receptor-positive breast cancer has distinct characteristics and pathologic complete response rate after neoadjuvant chemotherapyBCSS relationship between the ER-/PR + and ER + /PR any groups (Kaplan–Meier method and log-rank test) Legend: Regardless of how PR was expressed, when patients were positive for ER expression, their BCSS was significantly better than that of patients with ER-/PR + phenotypes (log-rank, P < 0.001). Abbreviation: ER, estrogen receptor; PR, progesterone receptorBack to article page