Revisiting the estrogen receptor pathway and its role in endocrine therapy for postmenopausal women with estrogen receptor-positive metastatic breast cancer
1. Division of Medical Oncology & Hematology, Department of Medicine, Loma Linda University, 11175 Campus Street, CSP 11015, Loma Linda, CA, USA 2. Division of Oncology, Washington University School of Medicine, St. Louis, MO, USA