Leatherhead to Radio-head: The Evolution of the Football Helmet, Arts & Culture
Has Gallaudet Developed the Football Helmet of the Future? - Washingtonian
Helmet Laboratory Testing Performance Results
The Tragic Risks of American Football
NFL bans 10 helmet models after 2018, including Brady's
Falcons' Calvin Ridley suspended indefinitely, at least through 2022 season, for betting on NFL games
Revived Arizona Cardinals head to Minnesota to take on 1st-place Vikings
Football helmets at Philadelphia-area high schools shed light on growing concussion concerns
A Helmet Shortage Is Hitting High School Football Across the Country - The New York Times