Breast cancer is the most frequently diagnosed cancer in women. It's estimated that 192,370 new cases of invasive breast cancer will be diagnosed in the US in 2009. Experts do not know the exact causes of breast cancer but research has shown certain factors increase a woman's chances of getting breast cancer. Although some women are at higher risk, the fact is all women are at risk for breast cancer. Learn more by participating in our Breast Cancer Risk Factors Multimedia Interactive Program.
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