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St. Louis Blues' Joel Edmundson pauses as fans uses their phones to light up Scottrade Center during a ceremony as part of a league-wide cancer awareness campaign, before an NHL hockey game between the St. Louis Blues and the Los Angeles Kings Friday, Dec. 1, 2017, in St. Louis. The Blues paid tribute to Ari Dougan, an 11-year-old who recently lost her battle against cancer. (AP Photo/Jeff Roberson)