Combined effect of oral contraceptive use and hormone replacement therapy on breast cancer risk in postmenopausal women.
OBJECTIVE: We examined breast cancer risk related to lifetime exposure to oral contraceptives (OCs) and hormone replacement therapy (HRT) in postmenopausal women. METHODS: The Women's Contraceptive and Reproductive Experiences (CARE) Study was a populatio
Cancer Causes Control 2003 Dec;14(10):933-43. JIF= 2.726