Repairing Hearts with Stem Cells

July 17, 2011 12:00:00 AM PDT
This year, 785,000 people in the U.S will have their first heart attack, and nearly half a million more, who've already had one or more heart attacks, will suffer another one. Heart attacks can do serious damage to the heart and affect everything from its size to its ability to function. Now, researchers believe our own bodies could hold the key to repairing that damage.

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