How Helmets Have Evolved to Prevent Football Concussions - Chester County Hospital
Football helmet with liquid padding may prevent concussions
Football Concussions: Prevention, Diagnosis & Recovery
Something is wrong with my brain': Life after football for one-time California star – Chico Enterprise-Record
Head injuries: Nearly 300 rugby players suing over brain damage : r/rugbyunion
New Helmet Technology Reduces Brain Injuries, Dr. John Lloyd
California high school football: Concussions spike, participation drops – Santa Cruz Sentinel
This Futuristic Helmet Is Designed to Protect Football Players From Brain Injury - Maxim
Study: No helmet brand can save football players from concussion risk - Los Angeles Times
Game of Life and Death: As concerns about CTE grow and players suffer from deadly disease, future of football looks bleak – New York Daily News
Smart football helmet may help detect concussions
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
concussion study Henry Ford Health - Detroit, MI