When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
Buffalo Bills' Damar Hamlin in critical condition after cardiac arrest on field, NFL
Bills-Bengals suspended after terrifying Damar Hamlin injury - Pats Pulpit
Bills' Damar Hamlin injury, cardiac arrest gives fans reality check
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
NFL Will Not Complete Bills-Bengals Game Where Damar Hamlin Was Hurt – The Hollywood Reporter
Damar Hamlin update, Bills-Patriots schedule, NFL Week 18
Buffalo Bills' Damar Hamlin police escort to hospital after collapsing on field
NFL player Damar Hamlin in critical condition after suffering cardiac arrest
Stefon Diggs among Bills players to visit Damar Hamlin at Cincinnati hospital (video)