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Sarah Burke of Whistler, Canada poses with her gold medal after winning the Women's Skiing Superpipe at Winter X Games 13 on Buttermilk Mountain in Aspen. (AFP Photo/Doug Pensinger)Read More

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Sarah Burke of Whistler, Canada celebrates as she takes the podium after winning the gold medal in the Women's Skiing Superpipe at Winter X Games 13 on Buttermilk Mountain on January 23, 2009 in Aspen. (AFP Photo/Doug Pensinger)Read More

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Gretchen Bleiler takes a fall during the Snowboard SuperPipe Women's Elimination at Winter X Games 13 on Buttermilk Mountain on January 22, 2009 in Aspen. (AFP Photo/Jonathan Moore)Read More

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Xavier Bertoni of La Clusaz, France practices for the Men's Skiing Superpipe at Winter X Games 13 on Buttermilk Mountain on January 22, 2009 in Aspen. Bertoni went on to win the event and take the gold medal. (AFP Photo/Doug Pensinger)Read More

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Sarah Burke of Whistler, Canada celebrates as she wins the gold medal in the Women's Skiing Superpipe at Winter X Games 13 on Buttermilk Mountain on January 23, 2009 in Aspen. (AFP Photo/Doug Pensinger)Read More