A timeline of the NFL's response after Damar Hamlin collapsed
When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
Medical personnel discuss approach to Hamlin incident
Damar Hamlin injury: What is the NFL's emergency action plan?
Editorial Damar Hamlin's injury shows importance of safety in football - The Pitt News
Damar Hamlin cardiac arrest: NFL's emergency action plan might have saved Buffalo Bills player in Cincinnati during Bengals game - ABC13 Houston
Focus on NFL star's care belies medical racism in US
Damar Hamlin to Be Celebrated by NFL During Weekend's Games - Sports Illustrated
Damar Hamlin Injury Shows The NFL Has Come A Long Way In On-Field Medical Treatment
42) Former NFL star Ephraim Salaam: Players' reaction to Hamlin's collapse was crucial in postponing the game
Damar Hamlin: Buffalo Bills player in critical condition but showing 'signs of improvement' as support offered to Tee Higgins, NFL News
NFL safety rules helped Hamlin get medical care quickly
Buffalo safety Damar Hamlin collapses during game vs. Bengals, is in critical condition, NFL says; game postponed indefinitely
Bills safety Damar Hamlin in critical condition after collapse during game