Bills' Hamlin collapses on field, gets CPR; game suspended
Explainer: What happened to Buffalo Bills safety Damar Hamlin?
Bills' Hamlin in critical condition after collapse on field - The San Diego Union-Tribune
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
5 other on-field medical emergencies in NFL history
NFL issues Buffalo Bills vs Cincinnati Bengals update after Damar Hamlin cardiac arrest - Mirror Online
NFL Cancels Bills-Bengals Game Following Damar Hamlin Injury
Bills safety Damar Hamlin collapses on field after making tackle
Bills' Damar Hamlin collapses vs. Bengals, game postponed - Sports Illustrated
Here's what happened after Damar Hamlin collapsed during the Bills-Bengals game : NPR