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Favre and famed doctor on the NFL's concussion crisis
Amanpour
Exclusive: Just days ahead of the Super Bowl, Christiane Amanpour speaks with Hall of Fame quarterback Brett Favre and Dr. Bennet Omalu, who discovered the brain disease CTE.
23:46 - Source: CNN
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Favre and famed doctor on the NFL's concussion crisis
23:46
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- Source: CNN