NFL players union urges quick changes to concussion protocol - WSVN 7News, Miami News, Weather, Sports
The NFL concussion protocol cannot save football
As new NFL concussion protocols stall, Rams' David Edwards returns - Los Angeles Times
NFL Return-To-Participation Protocol
NFL faces intense scrutiny over concussion protocols
NFL Health and Safety Fact Sheet
NFL and players' union approve helmet designed to reduce QB concussions, NFL
NFL and players union agree to updated concussion protocol, Sports
The NFL's Racist 'Race Norming' Is an Afterlife of Slavery - Scientific American
NFL kickoff rule change proposal delays after strong opposition
NFL, players' union agree to modify concussion protocol after Dolphins QB Tua Tagovailoa injury
N.F.L. Agrees to Settle Concussion Suit for $765 Million - The New York Times