Estrogen regulated gene expression in response to neoadjuvant endocrine therapy of breast cancers: tamoxifen agonist effects dominate in the presence of an aromatase inhibitor.
Harvell DM, Richer JK, Singh M, Spoelstra N, Finlayson C, Borges VF, Elias AD, Horwitz KB. Estrogen regulated gene expression in response to neoadjuvant endocrine therapy of breast cancers: tamoxifen agonist effects dominate in the presence of an aromatase inhibitor. Breast Cancer Res Treat. 2008 Dec; 112(3):489-501.