How a game-changing helmet design could prevent concussions - CBS News
Changing How We Detect and Treat Sport Concussions - Penn Medicine
Jeremy Repanich: Helmets alone won't save football from concussions - Sports Illustrated
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Jets legend Joe Klecko talks Hall of Fame chances, more in Q&A
Football helmets at Philadelphia-area high schools shed light on growing concussion concerns
Football helmet with liquid padding may prevent concussions
New high-tech helmets may protect American football players from debilitating concussions - Science & research news
Laboratory Evaluation of Shell Add-On Products for American Football Helmets for Professional Linemen
Risks worth rewards of playing football? Montanans weigh in
Six thousand yards passing is predictable
Can this helmet make football safer?
Concussions and conscience: Ex-Montana State, NFL star Corey Widmer rejects Hall induction to send message to moms
Helmets don't eliminate concussions. It's time for the NFL to ditch them, NFL