After the Test

Actress and director Angelina Jolie writes in the New York Times that she decided to undergo a preventive double mastectomy after learning that she carries a mutation in her BRCA1 gene. Jolie's doctors estimated that she had an 87 percent risk of developing breast cancer and a 50 percent risk of ovarian cancer. Jolie's mother, Marcheline Bertrand, died of ovarian cancer at 56.

After her surgery, Jolie says she now has a less than 5 percent chance of developing breast cancer.

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