Football head injuries: How much can helmets help?
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
I Won't Let My Kids Play Football, Even Though I Grew up Playing It
We Can Make Football Safer - Scientific American
Steelers debut new, safer helmets for off-season training
5 Ways To Decrease The Risk Of Concussions In Youth Football
Sherwood Foundation buys data-tracking helmets for every OPS high school football player
This Was Preventable': Football Heat Deaths and the Rising Temperature - Inside Climate News
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
Pop Warner football to educate kids on how to recognize concussions
Would football be safer with no helmets, pads?, Prior Lake Sports
Revolutionary new ZERO1 football helmet may help NFL players reduce concussions
Would the NFL or football in general be safer if there were no pads or helmets? - Quora
It's un-American': will the government and CTE fears kill US youth football?, Sport
With concussions at forefront of minds, helmet designs more important