Iowa company seeks to build better football helmets
Smart football helmet may help detect concussions
Will the NFL's Blitz for Position-Specific Helmets Pay Off?
NFL helmet safety testing results: Vicis ranks first again for its high-tech head protector – GeekWire
NFL safety: How VICIS' position-specific helmets have become all the rage - The Athletic
Study: Better Football Helmets Needed to Prevent Concussions - Physical Therapy Products
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
Smash-mouth football in lab points way to better helmets on the field - News
NFL, NFLPA approve concussion-reducing helmet for quarterbacks
How well do football helmets protect players from concussions?