Damar Hamlin's vitals 'back to normal', per marketing rep
Bills' Damar Hamlin in critical condition for cardiac arrest - Los Angeles Times
Damar Hamlin's Injury and Updates: What We Know - The New York Times
Who is Damar Hamlin? What to know about Bills safety who left Monday night's game by ambulance
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Players around NFL say Hamlin's injury wasn't Higgins' fault
Buffalo Bills Safety Damar Hamlin Discharged From the Hospital - WSJ
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Full coverage: Bills' Damar Hamlin suffers cardiac arrest vs. Bengals - Los Angeles Times
Ex-NFL doc tries to diagnose what went wrong when Bills' Damar Hamlin collapses on field
Buffalo Bills safety Damar Hamlin in critical condition after cardiac arrest, team says – WSB-TV Channel 2 - Atlanta