Iceland scientists tie mutation in a second gene to added breast cancer risk

Icelandic women with a bad gene that raises their risk of breast cancer were virtually certain to develop the disease if they also had a mutation in a second gene, scientists reported Monday.

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<p><a href="http://www.physorg.com/news70018720.html">Iceland scientists tie mutation in a second gene to added breast cancer risk</a></p> <p>Icelandic women with a bad gene that raises their risk of breast cancer were virtually certain to develop the disease if they also had a mutation in a second gene, scientists reported Monday.</p>