Helmet market, with deep Detroit ties, in arms race
Vicis ranks first in 'extensive' NFL helmet test that assesses head impact severity – GeekWire
Q-Collar: Helps Protect Athletes From Brain Injury
NFL safety: How VICIS' position-specific helmets have become all the rage - The Athletic
3 Ingenious innovations from the NFL's Helmet Challenge
Transcript, Player Health and Safety Preseason Media Briefing, August 16, 2023
The NFL concussion protocol cannot save football
Concussions: Study says small hits are just as traumatic - Sports Illustrated Vault
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
LaDarius Gunter clears NFL's concussion protocol
Football Helmets Made In Detroit Beat Competition In Head Impact Test
Price of safety: Schools spend thousands repairing football helmets
3 Ingenious innovations from the NFL's Helmet Challenge