What happened to Damar Hamlin, explained
Bills GM: Damar Hamlin cleared to play after cardiac arrest - WHYY
Damar Hamlin: NFL Buffalo Bills' player in critical condition after cardiac arrest
Damar Hamlin ready to suit up for first preseason game since cardiac arrest
NFL player Damar Hamlin in critical condition after suffering cardiac arrest during game
Bills' Damar Hamlin plays in first game since cardiac arrest
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
NFL player Damar Hamlin in critical condition after suffering cardiac arrest
Damar Hamlin, former Pitt and Central Catholic star, in critical condition after going into cardiac arrest during Bills-Bengals game
Explainer: What happened to Buffalo Bills safety Damar Hamlin?
Bills' Damar Hamlin 'scheduled to play' in preseason opener, marking first game since cardiac arrest
Damar Hamlin suffers cardiac arrest: NFL says decision on Bills-Bengals game will be made 'in the coming days'