What happened to Damar Hamlin?
Bills safety Damar Hamlin returns to action in first regular-season game since cardiac arrest
What Happened to Damar Hamlin? What We Know After Bills Player Collapses, Suffers Cardiac Arrest On Field – NBC Chicago
NFL Cancels Bills-Bengals Game Following Damar Hamlin Injury
NFL Cancels Bills Game After Damar Hamlin Suffers Cardiac Arrest
Bills' Damar Hamlin suffers cardiac arrest on field: Safety shows 'remarkable improvement;' Biden reaches out
Full coverage: Bills' Damar Hamlin suffers cardiac arrest vs. Bengals - Los Angeles Times
Bills' Damar Hamlin in critical condition after collapse on field
Damar Hamlin's On-Field Collapse Was Due to Cardiac Arrest, Bills Say - WSJ
Damar Hamlin: Bills Star Critical After Cardiac Arrest in Bengals NFL Game