OBJECTIVE: To investigate the relationships between plasma concentrations of sex hormones and risk factors for breast cancer. METHODS: We investigated the relationship of plasma concentrations of estradiol, progesterone, follicle-stimulating hormone (FSH), luteinizing hormone (LH) and sex hormone-binding globulin (SHBG) with breast cancer risk factors in 636 premenopausal and 456 postmenopausal women. Risk factor data were obtained from questionnaires and hormone concentrations measured by im...Expand abstract
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Circulating levels of sex hormones and their relation to risk factors for breast cancer: a cross-sectional study in 1092 pre- and postmenopausal women (United Kingdom).
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