Football's Concussion Crisis Is Awash With Pseudoscience
Helmet Innovation: More and Better Choices, Fewer Concussions
Guardian Caps - Are the soft-shelled football helmet covers
The Science of Concussion and Brain Injury - Scientific American
Football helmets are creating more problems than they solve
New BU Study Finds Tackle Football at Young Age Raises Risk for
NFL hopes to reduce head injuries with helmet experiment
Built By Data: NFL Helmet Innovation
Guardian Caps - Are the soft-shelled football helmet covers
Do helmets protect against concussion? - Queensland Brain
Urgent next step on football head injuries is a truly
Puffy, spongy Guardian Caps could help curb NFL head injuries
Can a Better Football Helmet Save Your Kid's Brain? - Washingtonian