Jeremy Repanich: Helmets alone won't save football from concussions - Sports Illustrated
Can a Better Football Helmet Save Your Kid's Brain? - Washingtonian
Op-Ed: 5 steps to protect football players' brains and keep the sport alive - Los Angeles Times
VICIS Zero1 top testing helmet NFL
Helmet Innovation: More and Better Choices, Fewer Concussions
Football helmet with liquid padding may prevent concussions
Built By Data: NFL Helmet Innovation
The Safest Football Helmet Is Not Yet a Hit in the NFL - WSJ
Finite Element Models: New Tools for Innovation in Football Helmet Design
Are lighter football helmets safer? Carlsbad company banking on it - The San Diego Union-Tribune
Padded helmet cover shows little protection for football players - Scope
Protective helmets make sports safer
Light helmet design's effectiveness pits company versus NFL, NFLPA and their testing - The Athletic
NFL approves QB-Specific helmet to help quarterbacks keep their heads in game - Hindustan Times
NFL hopes to reduce head injuries with helmet experiment