Covering the possible causes and diagnoses of Damar Hamlin's injury - Poynter
Bills safety Damar Hamlin returns to action in first regular-season game since cardiac arrest
Damar Hamlin update: Bills player in ICU with 'signs of improvement'
Damar Hamlin injury: Teamwork between Bills, Bengals medical staff may have saved his life, experts say
Damar Hamlin timeline from injury to return to Bills - The San Diego Union-Tribune
Buffalo safety Damar Hamlin collapses during game vs. Bengals, is in critical condition, NFL says; game postponed indefinitely
NFL speaks on Hamlin, game safety at press conference
24-year-old Buffalo Bills safety Damar Hamlin remains in critical condition Monday night
Praying for a miracle': Cowboys players, NFL react to Bills' Damar Hamlin's injury