| http://www.w3.org/ns/prov#value | - Interestingly, women who develop breast cancer while on estrogen have a lower risk of dying from their cancer than women who develop breast cancer when not on estrogen.The WHI study, was a large study conducted by the National Institutes of Health, that demonstrated an increased risk of breast cancer among menopausal women after four consecutive years of estrogen plus progesterone use.
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