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Photo by: Sean Kilpatrick

FILE - In this April 2, 2013, file photo, Canada's Jayna Hefford, left, and Marie-Philip Poulin attempt to stop United States' Julie Chu during the first period of a women's world ice hockey championship game in Ottawa, Ontario. Since women's ice hockey became an Olympic sport in Nagano in 1998, the Canada and the United States have dominated the podium, winning every gold medal and all but one of the silvers. (AP Photo/The Canadian Press, Seak Kilpatrick, File)

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