Boogaard's brain: A tragic tale of hockey, head injuries and a sport in denial
Derek Boogaard's death example of NHL's path to drug addiction - Sports Illustrated
Punched Out - Dart Center
Steve Montador's death should prod NHL to ban fighting altogether
Derek Boogaard
Derek Boogaard: A Boy Learns to Brawl - The New York Times
The Top 10 Heavyweights From The NHL Prospect Tournament in Traverse City, MI 1998-2012
Friends say NHL enforcer Derek Boogard felt the pain, too - ESPN
Review: 'Boy on Ice' by John Branch
NHL enforcers' deaths raise questions about fighting, drugs, and depression
This Is Your Brain On Ice
Tragic Death of Todd Ewen Raises Old Questions Anew
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Carcillo's pulling no punches now, says fighting in hockey has to stop
Derek Boogaard: A Boy Learns to Brawl - The New York Times