Rugby-Number of concussions in England unacceptable: head injury specialist | Reuters
World Rugby urged to follow rugby league's lead in adopting enhanced concussion protocols | Rugby Union News | Sky Sports
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Football Concussions—The NFL's Worst Fear—May Be More Likely On Fake Grass Fields, Study Suggests
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Which Is More Dangerous, Rugby or Football? - The Atlantic
Is rugby safer than football? - The San Diego Union-Tribune
Rugby concussion study assesses cognitive impact of contact sport in players' older age | The Scotsman
Football and rugby facing flood of claims over head injuries warning | Concussion in sport | The Guardian
/cdn.vox-cdn.com/uploads/chorus_image/image/54302747/Conccussions_Lede.0.jpeg "The NFL concussion protocol cannot save football - SBNation.com")
The NFL concussion protocol cannot save football - SBNation.com
Why Sports Concussions Are Worse For Women - Scientific American
Is rugby safer than football? - The San Diego Union-Tribune
Rugby vs. American Football: Which is “Tougher”? | SiOWfa16: Science in Our World: Certainty and Controversy
Rugby told to 'change or die' amid fears about concussion crisis suicides
Safety in youth rugby: education is not the answer to the concussion crisis - BJSM blog - social media's leading SEM voice
Football and rugby facing flood of claims over head injuries warning | Concussion in sport | The Guardian
Imminente vuoto Londra is rugby dangerous impreciso Stazione Permanente
NFL, Players Union Agree to Change Concussion Protocol - The New York Times
Which athletes tend to receive the most concussions? (I bet you're thinking NFL players.) — Dr. Mark Heisig
American football or rugby: which is more dangerous? | NFL | The Guardian
Rugby, concussions and duty of care: why the game is facing scrutiny
Rugby vs Football: Which Is More Dangerous? - FloRugby
The Dangers of Football Safety Equipment | Liberty Rugby Club
