Breast cancer risk slashed by hormone-blocking pill, study shows

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(CBS/AP) There's a new option for millions of women at high risk for breast cancer. A drug called Aromasin more than halved the likelihood of developing breast cancer, without the side effects that have tempered enthusiasm for other drugs, a new study showed.

It was the first time that Aromasin, Femara, Arimidex, and other aromatase inhibitors were test