'This Week': Football's Concussion Crisis

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'This Week': Football's Concussion Crisis

'This Week': Football's Concussion Crisis
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'This Week': Football's Concussion Crisis

by ABC News Videos 11:10 mins

Dr. Richard Besser, Christine Brennan, Mark Fainaru-Wada, and former NFL player Joe DeLamielleure on concussions in football.

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