Concussions are on the rise in the NFL: League releases data that shows 58% increase in regular season concussions – New York Daily News
What will happen to former NFL player's brain?
CTE Study Finds Evidence of Brain Disease in 110 Out of 111 Former NFL Players
Dave Duerson Act could ban tackle football for children under 12
N.F.L. Players Shaken by Duerson's Suicide Calculation - The New York Times
Chicago Bears' Dave Duerson Found to Have Brain Trauma
Brain injuries shake up football coverage - Columbia Journalism Review
Concussion Goggles Support Dave Duerson Fund
Duerson's brain was damaged, study shows
Deion Sanders, critic of NFL concussion suits, seeks workers' comp - Los Angeles Times
New: 87 Deceased NFL Players Test Positive for Brain Disease