First QB helmet designed to help reduce concussions approved
NFL, NFLPA approve new helmet that quarterbacks can wear to reduce concussions
New NFL Helmets: Will the Quarterback Special Helmets Aid in Preventing Concussions? - The SportsRush
Find out how modern football helmets attempt to limit brain injuries
Everything you need to know about the NFL's helmet guidelines and restrictions - Canal Street Chronicles
Is It Time to Retire the Football Helmet? - WSJ
It's A Surprise That Football Helmets Don't Actually Protect Against Concussions - Pledge Sports
Football Helmet Misconceptions: Q&A
NFL hopes to reduce head injuries with helmet experiment - Seattle Sports
Football helmets are creating more problems than they solve