Young woman having a mammogram (with radiographer)
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Breast cancer: Scientists hail 'milestone' genetic find

2 May 2016 Last updated at 21:39 BST

Scientists say they have a near-perfect picture of the genetic mutations that cause breast cancer.

The study, in the journal Nature, has been described as a hugely significant moment in cancer research. It is hoped the analysis could help unlock new ways of "tailoring treatments" for breast cancer.

Dominic Hughes reports.