NFL players get education on Damar Hamlin's cardiac arrest - Los Angeles Times
Damar Hamlin Remains in Critical Condition as NFL Says Game Will Not Resume This Week - WSJ
NFL: Damar Hamlin cleared to play again after cardiac arrest, American Football News
Examining football's health risks after Damar Hamlin's cardiac arrest on the field
Bills safety Damar Hamlin eases back into practice 5 months since near-death experience, Sports
Bills safety Damar Hamlin eases back into practice 5 months since near-death experience – NewsNation
What is commotio cordis, which NFL player Damar Hamlin says stopped his heart?
Damar Hamlin: NFL player who collapsed mid-game after cardiac arrest is 'guaranteed' to return, doctor says, US News
Cardiac arrest causes: What led to Buffalo Bills' Damar Hamlin's collapse?
Bills' Damar Hamlin in Critical Condition After Hit During Bengals Game - The New York Times
Buffalo Bills' Damar Hamlin puts sports in perspective