A major study presented at the American Society of Clinical Oncology found a drug already used to fight breast cancer may help prevent the disease all together. The pills are called aromatase inhibitors and, up until now, they've been used to prevent recurring cases of breast cancer in post-menopausal women. Michele Norris speaks to Dr. Otis Brawley, chief medical officer and executive vice president of the American Cancer Society.
Drug Shows Promise In Reducing Breast Cancer Risk
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