Bills' Hamlin attends 1st game since collapse, waves to fans – KGET 17
Buffalo Bills' Damar Hamlin makes impact in first game since cardiac arrest, Buffalo Bills
What is commotio cordis, which NFL player Damar Hamlin says stopped his heart?
Damar Hamlin: Bills safety plays for first time since suffering cardiac arrest in January, NFL News
Calls for NFL Reforms Grow After Damar Hamlin Suffers Cardiac Arrest During Game
Bills safety Damar Hamlin returns to action in first regular-season game since cardiac arrest
Bills' Damar Hamlin attends 1st game since cardiac arrest, waves to fans
Relative of Damar Hamlin offers promising update in Bills safety's fight to recover from cardiac arrest
NFL: Damar Hamlin cleared to play again after cardiac arrest, American Football News
NFL player Damar Hamlin in critical condition after suffering cardiac arrest