Are NHL enforcers' addictions, depression a result of on-ice brain trauma?
Tough Guy: The Bob Probert Story Released, An Interview with Director Geordie Day
Players with the most penalty minutes in NHL history - ABC17NEWS
Death of Rangers' left wing Derek Boogaard, just 28-years-old, sends shockwaves through hockey world – New York Daily News
The Penalty for Hockey's Enforcers May Be Premature Death
Rules, equipment change fighting's impact on NHL - The San Diego Union-Tribune
Hockey Enforcer Bob Probert Paid a Price, With Brain Trauma - The New York Times
Hockey Enforcer Bob Probert Paid a Price, With Brain Trauma - The New York Times
Throwback: Bob Probert takes on Marty McSorley. - HockeyFeed
CTE in the NFL: The tragedy of Fred McNeill
No easy answers in concussion suit
head trauma
Taking Note: The WHL and concussions: A mother cries out for help