Buffalo Bills' Damar Hamlin critical after collapse on field - WHYY
Damar Hamlin makes an early impact in returning to field in Bills' preseason game against Colts
Explainer: What Happened to Buffalo Bills Player Damar Hamlin?, Chicago News
Bills safety Damar Hamlin suffered cardiac arrest, heartbeat restored, on field
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
Bills' Hamlin in critical condition after collapse on field; NFL postpones game - 5 Eyewitness News
Damar Hamlin injury update: The NFL response shows the league isn't built for this.
Damar Hamlin thankful in first public comment since cardiac arrest - Los Angeles Times
Bills' Damar Hamlin in critical condition after collapse on field
AP source: Damar Hamlin visits Bills teammates for 1st time since injury