CTE cases in soccer players raise fresh questions about safety of heading the ball
Research on concussions can't say if football is bad for the brain - STAT
Opinion: CTE is becoming a problem in football
96% of NFL players studied show brain disease
Former Saint Rob Kelly's wife: I tell my husband's CTE story to show how widespread the problem is in football, Opinions and Editorials
Concussions and CTE: More complicated than even the experts know
Youth football participation declines as worries mount about concussions, CTE
NFL stands behind exec's statement linking football with CTE
Football And CTE: In New Study, Nearly All Donated NFL Player Brains Found To Have CTE : NPR
Latest CTE findings just another blow to NFL's dubious history with head injuries – New York Daily News
CTE Risk Doubles After 3 Years of Playing Football, The Brink
CTE's Impacts On Young Football Players Can Be Chronic And Deadly – Rolling Stone