Who is Damar Hamlin, the Buffalo Bills player who collapsed at Monday's game? : NPR
5 other on-field medical emergencies in NFL history
What Is Cardiac Arrest? What to Know About Why Damar Hamlin Collapsed - WSJ
Bills-Bengals won't resume this week; Hamlin had cardiac arrest - Los Angeles Times
Bills safety Damar Hamlin remains in critical condition after cardiac arrest on field - ABC News
Updates about Damar Hamlin vigil, injury during Bills-Bengals game
NFL player in 'critical condition' after suffering cardiac arrest during game
Damar Hamlin: NFL star plays first game since suffering cardiac arrest on pitch, US News
Damar Hamlin Showing Signs of Improvement After Collapse During NFL Game - WSJ
Damar Hamlin discharged after spending more than a week hospitalized due to a cardiac arrest
After Damar Hamlin's cardiac arrest, what can the NFL learn from soccer? - The Athletic
Bills safety collapses on field, MNF game suspended