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Can Radiation Prevent Breast Cancer?

One study says it may prevent 100,000 cases of breast cancer.

Breast cancer survivors have a one in six chance of developing the disease in the other breast. Now, a new study in mice suggests that risk can dramatically be reduced by treating the non-affected breast with moderate doses of radiation.

Researchers say radiating the second breast reduced the risk of cancer by a power of three. They say, if it works in women, it could prevent about 100,000 cases of breast cancer.
 
The scientists plan to test their theory in a clinical trial. The study, conducted by researchers at Columbia University Medical Center was published in the online journal PLOS ONE.

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