Former NHL player Chris Pronger, offers support for Bills' Damar Hamlin, recalls frightening puck to chest in 1998
Understanding cardiac arrest and emergency response following Damar Hamlin's collapse during Monday Night Football
Examining football's health risks after Damar Hamlin's cardiac arrest on the field
What happened to NFL player Damar Hamlin, who collapsed on the field after suffering cardiac arrest
What Could Cause Sudden Cardiac Arrest in NFL Player Damar Hamlin? - Health News Hub
NFL player's cardiac arrest was a triggering, traumatic event for many
NFL's Damar Hamlin could have suffered rare heart trauma during tackle, doctors say
What Is Cardiac Arrest? - Baton Rouge Clinic
The Tragic Risks of American Football