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N.F.L.-Backed Youth Program Says It Reduced Concussions. The Data Disagrees. - The New York Times
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NFL, NIH End Partnership For Concussion Research With $16M Unspent : The Two-Way : NPR
N.F.L.-Backed Youth Program Says It Reduced Concussions. The Data Disagrees. - The New York Times
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N.F.L. Reports a Decline in Concussions This Season - The New York Times
Collective Force of Head Hits Increases Odds of CTE, Study Says - The New York Times