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Mason Pritcher, a high school athlete, goes through tests with Dr.... News PhotoArlington - Texas,Athlete,Athleticism,Concussion,Diving Into Water,Gulf Coast States,Healthcare And Medicine,High School,Research,Sport,Texas,USA,VerticalPhotographer Collection: Tribune News Service 2012 MCTMason Pritcher, a high school athlete, goes through tests with Dr. Jacob Resch, left, who is conducting research on concussions in young athletes at the University of Texas Arlington on March 7, 2012. (Ron Jenkins/Fort Worth Star-Telegram/MCT via Getty Images)