A blood test that could rule out a heart attack in under 20 minutes have been tested by King's College London researchers, who have tested it on patients and say the cMyC test could be rolled out within five years, as reported in the journal Circulation.

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A blood test that could rule out a heart attack in under 20 minutes have been tested by King's College London researchers, who have tested it on patients and say the cMyC test could be rolled out within five years, as reported in the journal Circulation.