Damar Hamlin cleared to resume playing football after cardiac arrest last season
Buffalo Bills safety Damar Hamlin in critical condition after cardiac arrest, team says – WSB-TV Channel 2 - Atlanta
NFL Player Damar Hamlin Goes Into Cardiac Arrest
Damar Hamlin's immediate care, youth, fitness may pull him through cardiac arrest
What we know about Damar Hamlin's condition after cardiac arrest
Bills safety Damar Hamlin in critical condition after cardiac arrest; game suspended
Damar Hamlin cardiac arrest: Everything you need to know about collapse of Bills player.
NFL roundup: Damar Hamlin sees first game action since going into cardiac arrest
Buffalo Bills star Damar Hamlin's on-field collapse puts spotlight on cardiac arrest in young people - ABC News
Bills' Hamlin still in critical condition after on-field cardiac arrest