Is there life after football for NFL pros?
Junior Seau's death a sobering wake-up call, former NFL players say – The Mercury News
Dave Duerson, NFL Star Commits Suicide gives Brain to Science 2/21/2011
College quarterback who killed himself had extensive brain damage linked to concussions
The Football Player's Brain That Sparked the NFL's Concussion Crisis - The Atlantic
Football Player Had 'Worst' Brain Trauma Seen in Someone So Young, Doctor Says
Junior Seau Had Brain Disease - The New York Times
First professional female athlete diagnosed with degenerative brain disease CTE, Sports
Scientists Studied The Brains Of 111 NFL Players. 110 Had A Degenerative Brain Disease.
Nearly every former NFL player who donated brain for research suffered from CTE – New York Daily News