Willie Haulstead is done at Florida State, and concussions really suck - Tomahawk Nation
What is CTE? Symptoms, stages and more on the diagnosis
Players With C.T.E. Doubled Risk With Every 5.3 Years in Football - The New York Times
CTE found in 92 percent of ex-NFL players analyzed in updated report
George F. Will: Football's enjoyment is on a fade pattern
AT THE HEAD OF THE ISSUE - IAED Journal
NFL players discuss CTE findings in former-player brains - Sports Illustrated
Former NFL star Demaryius Thomas' family says he had CTE - CBS News
Players With C.T.E. Doubled Risk With Every 5.3 Years in Football - The New York Times
Largest study of brains of athletes younger than 30 finds early signs of CTE even in amateur players