Concussions rose in 2015 NFL season - Newsday
NFL offseason priorities for 2023: Possible rules changes, safety reforms - ESPN
NFL says regular-season concussions increased 18% in 2022 - ABC Columbia
JOHN DOHERTY: NFL fooling itself on subject of concussions
NFL offseason priorities for 2023: Possible rules changes, safety reforms - ESPN
Racial disparities in concussions (10/1/20 newsletter) — Concussion Alliance
Concussions rose in 2015 NFL season - Newsday
NFL concussions: Reported cases up to six-year high in 2017
NFL changes concussion protocol after controversial calls this season - Good Morning America
Teens self-reporting concussions rose 20% in 4 years - Futurity
Injuries raise concerns as NFL season begins
NFL: Concussions Up 18% in 2022 Season