League Of Denial: The NFL's Concussion Crisis FRONTLINE
Official Site of the National Football League
2017 NFL Season - 10 Tech Innovations That Changed the NFL
2017 NFL Season - 10 Tech Innovations That Changed the NFL
Patriots Vs. Rams: What To Watch For In Super Bowl LIII : NPR
What's your go to's for helmets? something with MIPS : r/Dirtbikes
NFL Helmet Challenge: Increasing player safety, nTop
$1.37 Million Awarded in HeadHealthTECH Grant Funding to NFL Helmet Challenge Applicants
High-tech helmets designed to lower risk of concussions make NFL debut - The Washington Post
How the NFL Fleeces Taxpayers - The Atlantic