Genetic test could provide breast cancer warning

May 2 - A molecular change that switches genes on or off can pre-empt the onset of breast cancer decades before the disease develops, British researchers say. The scientists hope the discovery will lead to a simple blood test that can determine vulnerability to the disease. Matthew Stock reports.

Source: http://feeds.reuters.com/~r/reuters/USVideoMostWatched/~3/a3R5XYdDMKc/genetic-test-could-provide-breast-cancer

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