Sony Altered 'Concussion' Film to Prevent N.F.L. Protests, Emails Show - The New York Times
Concussion OuiLife OuiLove
Concussion Movie vs True Story of Bennet Omalu, Mike Webster
The NFL star and the brain injuries that destroyed him, World news
Dave Duerson's Family Says 'Concussion' Film Smears Him - The New York Times
Concussion Movie vs True Story of Bennet Omalu, Mike Webster
Dave Duerson family upset over how he's portrayed in 'Concussion' — report - Chicago Sun-Times
Dave Duerson death: Family of football star who killed himself after multiple concussions sues NFL