Who is Damar Hamlin, the Buffalo Bills player who collapsed at Monday's game? : NPR
Examining football's health risks after Damar Hamlin's cardiac arrest on the field
AP Source: Hamlin makes Bills' 53-man roster eight months after suffering cardiac arrest
Bills safety Damar Hamlin in critical condition after cardiac arrest; game suspended
Buffalo Bills safety Damar Hamlin going home after release from hospital
Damar Hamlin returns to Bills active roster after cardiac arrest in January – NBC4 Washington
What is commotio cordis, which NFL player Damar Hamlin says stopped his heart?
Who is Damar Hamlin? The Bills Safety Who Suffered Cardiac Arrest – NBC 5 Dallas-Fort Worth
Damar Hamlin status: Bills confirm safety suffered cardiac arrest - Buffalo Rumblings