Going Home: Bills' Hamlin Released From Buffalo Hospital
What is commotio cordis, which NFL player Damar Hamlin says stopped his heart?
Damar Hamlin: Buffalo Bills safety returns to action in first regular-season game since cardiac arrest, NFL News
Bills safety Damar Hamlin 'scheduled to play' in Saturday's preseason game against Colts
Damar Hamlin: Buffalo Bills player in critical condition but showing 'signs of improvement' as support offered to Tee Higgins, NFL News
Damar Hamlin's cardiac arrest during 'Monday Night Football' could be commotio cordis or a more common condition – a heart doctor answers 4 questions
Bills' Damar Hamlin in critical condition after collapse on field
Bills DB Damar Hamlin expected to be active Sunday for first time since suffering cardiac arrest
Covering the possible causes and diagnoses of Damar Hamlin's injury - Poynter