European journal of cancer : official journal for European Organization for Research and Treatment of Cancer (EORTC) [and] European Association for Cancer Research (EACR)
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Randomized Controlled Trial Comparative Study Clinical Trial
Fulvestrant versus anastrozole as second-line treatment of advanced breast cancer in postmenopausal women.
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Tamoxifen versus toremifene in the adjuvant treatment of breast cancer.