The Athletic Quotes Dr. Williams: Tua Tagovailoa is learning how to fall: Could jiu-jitsu help save his career?
CQ Researcher - Sports Safety
Buffalo Bills safety Damar Hamlin collapses on field after making tackle - CBS Pittsburgh
2016 Akron Zips Football Media Guide by Akron Zips - Issuu
Dr. David Agus on Buffalo Bills' player Damar Hamlin's condition after collapsing on field - CBS News
Bills Safety Damar Hamlin Suffered Cardiac Arrest On Field, In Critical Condition
Bills' remarkably improved Damar Hamlin asks: 'Did we win?' - Los Angeles Times
Bills Safety Damar Hamlin Suffered Cardiac Arrest On Field, In Critical Condition
Damar Hamlin suffered cardiac arrest during game, heartbeat restored on field, Bills say
Bills' Hamlin collapses; medical events that stopped play
Bills' Hamlin in critical condition after collapse on field
Family of Bills' Damar Hamlin thankful for outpouring of support
Bills' Hamlin collapses: Other medical events involving athletes that stopped play
Bills Safety Damar Hamlin Collapses on Field During Monday Night Football - Sports Illustrated