Concussion Doctor: Over 90% of NFL Players Have CTE
Brain scans may reveal concussion damage in living athletes – Boston Herald
5 NFL Athletes Who Had CTE
Ex-NFL players band together, sue league over brain injuries
Concussion story in the NFL seems to have been lost in the shuffle - Los Angeles Times
Dave Duerson's Suicide Raises Awareness of Brain Injuries
Former NFL Player Commits Suicide, Donates Brain to Science
Study: CTE very widespread
NFL great Junior Seau had brain disease CTE when he committed suicide
Traumatic Brain Injury: The Invisible Illness
The Aaron Hernandez Suicide: A Football Brain Injury Link?
Study Reveals Brain Damage in Deceased NFL Player
More cases of brain disease found in football players
The brain injuries that destroyed a football superstar
Setting the record straight on CTE