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Dr Kevin Fong finds out how close scientists are to being able to mend your heart if it stops working. He meets some of the people who have undergone pioneering heart operations and the scientists who are pushing the... Science http://topdocumentaryfilms.com/how-to-mend-a-broken-heart/ http://topdocumentaryfilms.com/how-to-mend-a-broken-heart/ 170517