Damar Hamlin's collapse is the latest in history of medical emergencies in sports - ABC News
Damar Hamlin: Buffalo Bills safety showing 'remarkable improvement,' doctors say
Buffalo Bills safety Damar Hamlin in critical condition after cardiac arrest, team says – WPXI
Damar Hamlin: What happened to Bills safety?
Damar Hamlin toy drive gets $1M in donations after Bills safety suffers injury
Damar Hamlin: I'm Cherishing Every Moment I Can
4 Vikings at Bears Storylines: Mindful of Damar Hamlin, Preparations for Week 18 Begin
What is the link between cardiac arrest and excessive stress from sports? Experts weigh in
Doctor explains what likely caused Damar Hamlin's cardiac arrest
Explainer: What happened to Buffalo Bills safety Damar Hamlin?