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  • Drop in temperatures leads to rise in heart attacks, study saysadd to reading list  

    Posted on December 15, 2012 at 2:54 PM

    One study used data on hundreds of thousands of heart attacks documented in the National Registry of Myocardial Infarction, found that 53 percent more cases were reported in winter than in summer.

    By Janet St. James / WFAA.com
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