Damar Hamlin's doctors say he's 'making substantial progress,' 'beginning to awaken' after on-field collapse
OHSU heart doctor talks Damar Hamlin injury
Damar Hamlin, still critical, continues recovery, tweets thanks
Damar Hamlin shows 'signs of improvement' while still in ICU in critical condition, Bills say, after mid-game cardiac arrest
Hamlin's Recovery Continues, Still In Critical Condition
Bills-Bengals canceled, NFL releases AFC playoff scenarios
Bills' Hamlin breathing on his own, joins team via video
Damar Hamlin's Cardiac Arrest: What We Know and Don't Know - The New York Times
Update: Damar Hamlin has made 'fairly remarkable improvement,' can communicate in writing