Chrome 2001
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Aetna Intelihealth InteliHealth Aetna Intelihealth Aetna Intelihealth
 
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Harvard Medical School
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Chrome 2001
Chrome 2001

Heart Attack (Myocardial Infarction)
A heart attack occurs when one of the heart's coronary arteries is blocked suddenly, usually by a tiny blood clot (thrombus).


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