Prevention of breast cancer is medically possible. In Australia, one in eight women will be diagnosed with breast cancer. In women with moderately (1.5 to 3 times average) and highly (3 times average or greater) increased lifetime risk of breast cancer, personalised risk reducing strategies are available. For example, five years of tamoxifen has been shown, in international studies involving thousands of women, to reduce the relative risk of breast cancer by at least 40% for those who have moderate to high lifetime risk of breast cancer.
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