Can Science Solve Football's Concussion Crisis?
N.F.L.'s Flawed Concussion Research and Ties to Tobacco Industry
The Hidden Danger of Concussions in the NFL – The Cherokee Scout
Rugby's head injury crisis – and why the sport is more dangerous
In Europe, Echoes of America as Concussions Spur Debate - The New
The NFL's concussion crisis, explained
Brain Injuries in Sport: The Invisible Killer - Sports Integrity
Bennet Omalu, Concussions, and the NFL: How One Doctor Changed
TMQ and Mel Kiper Jr. on the size increase in football players - ESPN
The NFL's Response to Brain Trauma: A Brief History - The Atlantic
D'Brickashaw Ferguson Said He Felt Betrayed by the League in