NFL Enters Next Era of Helmet Safety with Advent of Quarterback-Specific Helmet
New Smart Helmet Could Spot Concussions in Real Time
First QB-specific helmet designed to help reduce concussions approved
NFL, NFLPA announce new quarterback helmet to prevent concussions
First QB helmet designed to help reduce concussions approved
Protective helmets make sports safer
First QB helmet designed to help reduce concussions approved
Can Custom-Fit Football Helmets Protect Athletes From Brain Trauma?, Chicago News
Arizona Cardinals defensive end J.J. Watt not fan of the new league-mandated Guardian Caps on helmets
NFL hopes to reduce head injuries with helmet experiment – The Morning Call
In Race to Develop Safer Football Helmets, Many Questions Remain - The New York Times
Concussion protection for Tua Tagovailoa? NFL, union approve QB-specific helmet