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Background Estrogen receptor (ER)-positive and human epidermal growth factor receptor 2 (HER2)-negetive breast cancers can be divided into luminal A and luminal B subtypes based on Ki67 expression levels. However, the biological differences in ER and progesterone receptor (PR) expression levels between these luminal subtypes are not clear. Methods We examined immunohistochemical expression levels...
Backgrounds The aim of this study was to assess the efficacy and safety of neoadjuvant anastrozole and radiation in postmenopausal breast cancer patients with hormone-receptor-positive tumors. In addition, we assessed the predictive factors for clinical and pathological response for concurrent anastrozole and radiotherapy. Methods Patients with tumors 3 cm or larger were treated with neoadjuvant...
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