Riddell launches Axiom, latest helmet to combat concussions
WIAA rule cuts high school football concussion rate by more than
Research Reveals Limitations of Football Helmets Against TBI's
3 in 4 Youth Football Players Have Ill-Fitting Helmets, Posing
Study provides the first data on concussion risk in youth football
High-tech gear aims to lessen deadly risk of football concussions
With concussions at forefront of minds, helmet designs more important
Football helmets don't protect against concussion — and we're not
Study: Many NFL players wore low-rated helmets – The Denver Post
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Are Modern Football Helmets Any Safer than Old-School Leather Ones
Helmet sticker may reduce concussions
Culture of Resistance' for Self-Reporting Concussions, Study Finds
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