KNTV NBC Nightly News With Lester Holt August 21, 2019 09:17:00
>> reporter: ashley rivera never thought she was at risk for breast cancer. when she developed stage 3 cancer at age 28, doctors began to wonder whats in her genes. >> nobody believed it could happen this young. >> reporter: turns out ashley has a mutation which dramatic raisethe risk for breast and ovarian cancers >> i didnt care about me at that point i have three kids at that moment that could have the gene as well >> reporter: now a prestigious panel of doctors recommends all survivors of br...
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