Boogaard's brain donated to Boston University
Bears, teammates stunned by Duerson's death
The final days of Dave Duerson, Sports news, Lewiston Tribune
Friends, family remember ex-Bears star Duerson - The San Diego Union-Tribune
Virginia Episcopal School - 2021-22 Annual Report on Giving by VES_ Bishops - Issuu
Chicago Bears - Wikipedia
NHLer Boogaard's brain donated for trauma research - The San Diego Union-Tribune
Jovan Belcher's mother files wrongful death lawsuit against Kansas City Chiefs – New York Daily News
Junior Seau's death a sobering wake-up call, former NFL players say – East Bay Times