Biodynamics article

https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=1IHCf1EtQY0ZDxWTsVegDiwjdnsVyBUyD5XY0TA5pj9YLZdsV3UXXPZTswZhZ&hl=en&authkey=CPahlocH

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