Bills' Damar Hamlin attends 1st game since cardiac arrest, waves to fans
Damar Hamlin: Buffalo Bills player in critical condition but showing 'signs of improvement' as support offered to Tee Higgins, NFL News
NFL's Damar Hamlin injury: Buffalo Bills release official cause of Damar Hamlin's life-threatening collapse
Bills S Damar Hamlin has cardiac arrest on field, NFL suspends game vs. Bengals
Damar Hamlin in critical condition after suffering cardiac arrest; Bills-Bengals postponed - ESPN
What we learned about the NFL in the aftermath of Damar Hamlin's cardiac arrest
Bills safety Damar Hamlin remains in critical condition after cardiac arrest on field - ABC News
Doctors explain why Buffalo Bills safety Damar Hamlin collapsed as support pours in from fans, players - CBS New York
Bills' Damar Hamlin in critical condition for cardiac arrest - Los Angeles Times