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by Kevin Bonsor

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    Please copy/paste the following text to properly cite this HowStuffWorks article:

    Bonsor, Kevin.  "How Artificial Hearts Work"  09 August 2001.  HowStuffWorks.com. <http://science.howstuffworks.com/innovation/everyday-innovations/artificial-heart.htm>  22 May 2012.
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    Introduction to How Artificial Hearts Work
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    A Hydraulic-driven Heart
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    The Seven-hour Surgery
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