Prime Minister David Cameron has been in Cambridge to announce a £100 million investment in DNA mapping for cancer and rare diseases.
Eventually its hoped doctors could use the information to develop bespoke drug treatments for patients based on their own DNA
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Showers will drift north across eastern coastal counties this evening with thunderstorms out to sea. Fine again tomorrow.
Doctors are warning that millions of people who go to A and E don't actually need to be there.
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