Abstract:Background: Oral contraceptives (OC) and hormone replacement therapy (HRT) are well-established risk factors for ER positive breast cancer. Infertility is associated with an increased breast cancer risk and there is conflicting data on the influence of fertility treatments on breast cancer risk. The impact of exogenous estrogen exposure on breast cancer characteristics is not well described. Methods: A single center retrospective cohort study comprising all women with ER positive, human epidermal growth factor… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.