This Helmet Will Save Football. Actually, Probably Not. - The New York Times
Phillip Hughes' kit could have prevented his injury, say experts
Cardiff Uni wins £90,000 to develop helmet padding for NFL - Gair Rhydd
New Player-Specific Football Helmets Could Reduce Head Trauma
Ztopstory hi-res stock photography and images - Alamy
Helmets don't eliminate concussions. It's time for the NFL to ditch them, NFL
Brain Injury: CTE Found in 87% of Football Players' Brains
Football's Concussion Crisis Is Awash With Pseudoscience
Sideline Doctors Face Scrutiny After Hits to a Star Quarterback - The New York Times
The full list of accusations rugby players are making against the WRU and World Rugby - Wales Online
The Cardiff University Cobras
Blood test screening for ovarian cancer may save lives, major study suggests - Wales Online
Potential' to tackle rugby concussion with headgear - BBC News
NFL hopes to reduce head injuries with helmet experiment, Taiwan News
The NFL is working with Cardiff University to develop cutting-edge helmet padding - BBC Sport