Here's what happened after Damar Hamlin collapsed during the Bills-Bengals game : NPR
Covering the possible causes and diagnoses of Damar Hamlin's injury - Poynter
Damar Hamlin in critical condition after collapse at Cincinnati game
Buffalo Bills' Damar Hamlin in critical condition after suffering cardiac arrest on field - CBS News
Buffalo Bills safety Damar Hamlin cleared to resume football activities - Buffalo Rumblings
Bills' Hamlin breathing on his own, joins team via video
Damar Hamlin's collapse on the field was football's 'extremely ugly' side, says former NFL player Ryan Clark
NFL: Bills-Bengals game will not resume this week
Damar Hamlin makes season debut for Bills after cardiac arrest - ESPN
What happened to Damar Hamlin?
Damar Hamlin not expected to play in the Bills opener against the Jets, AP source says
Buffalo Bills' Damar Hamlin in critical condition after collapse on field
NFL says Bills-Bengals game will not be completed as doctors outline and supporters cheer Damar Hamlin's improvement