League of Denial: The NFL, Concussions and the Battle
Hits Affecting The Head — Even Ones Without Concussions — Cause
Brain disease that plagues football players is caused by repeated
Chronic traumatic encephalopathy - Wikipedia
Autopsy: Severe brain trauma in ex-NFL player who shot 6
Will a Test for Brain Trauma Protect NFL Players—or End the NFL
CTE is real': New study finds brain disease in almost all football
Boston University Study Shows 92 Percent of Former NFL Players
5 NFL Athletes Who Had CTE
Dead athletes' brains show damage from concussions
Contra Costa Times editorial: Ken Stabler's brain diagnosis adds
BU Researchers Find CTE in 99% of Former NFL Players Studied
Football Player Had 'Worst' Brain Trauma Seen in Someone So Young