CTE Risk Doubles After 3 Years of Playing Football, The Brink

understanding-cte-symptoms-progression-research

Chronic traumatic encephalopathy - Wikipedia

What is C.T.E.? - The New York Times

CTE found in former soccer players, study shows

Playing Tackle Football Before 12 Is Tied to Brain Problems Later - The New York Times

The link between head injuries and CTE in football, explained - Vox

CTE Boston University

NFL executive's comments on CTE quickly attract notice - Los Angeles Times

Football And CTE: In New Study, Nearly All Donated NFL Player Brains Found To Have CTE : NPR

Past Projects Football Program & Football Player's Association

Exactly How Dangerous Is Football?

CTE found in 92 percent of ex-NFL players analyzed in updated report

tau protein – NIH Director's Blog

Past Projects Football Program & Football Player's Association

Playing Tackle Football Before 12 Is Tied to Brain Problems Later - The New York Times