When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
Physicians explain incredibly rare event that 'likely caused' Damar Hamlin's cardiac arrest
Bills' remarkably improved Damar Hamlin asks: 'Did we win?' - Los Angeles Times
Buffalo Bills' Damar Hamlin breathing on his own, talking to family - ABC News
Cardiologist Explains Damar Hamlin's Collapse, Promotes AEDs
What happened to Damar Hamlin? Explaining cardiac arrest causes
Cardiologists: Hamlin injury 'extremely rare' - NewsChannel 13
Damar Hamlin's collapse underscores that even young, fit athletes can suffer sudden cardiac arrest. Experts explain what causes it
Buffalo Bills star Damar Hamlin's on-field collapse puts spotlight on cardiac arrest in young people - Good Morning America
NFL star Damar Hamlin's family thanks fans for support after his collapse - BBC News
Cardiac arrest causes: What led to Buffalo Bills' Damar Hamlin's collapse?