What happened to Damar Hamlin, explained
Bills: Damar Hamlin cleared to return
NFL roundup: Damar Hamlin sees first game action since going into cardiac arrest
Damar Hamlin cleared to resume playing football after cardiac arrest last season
Hamlin cleared to play 4 months after cardiac arrest - The Sumter Item
When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
Damar Hamlin medically cleared to resume playing
Bills safety Damar Hamlin returns to action in first regular-season game since cardiac arrest, Sports
Damar Hamlin plays in first NFL game since cardiac arrest
Bills safety Damar Hamlin ready to suit up for first preseason game since going into cardiac arrest – Orlando Sentinel
Bills' Damar Hamlin has been cleared to resume full football activities