California high school football: Concussions spike, participation
Should children play tackle football? (w/video)
Hitting hard: Sports mom pushes concussion education
The Fallout Of Football Brain Injury Risks For Wisconsin's Youth
Kids and Concussions: The effects of head injuries in young
Concussions: How youth football enrollment has changed nationwide
Youth football participation declines as worries mount about
Death Haunts A Football Player Years After The Fatal Hit : Shots
Local youth athletic participation on the down swing