Buffalo Bills' Damar Hamlin collapses on field, in critical condition
Jersey Shore High School football player who collapsed on field
Centre County schools support Max Engle, Jersey Shore player
Another Pa. high school football player had to be flown to a
Centre County schools support Max Engle, Jersey Shore player
The heartbeat of athletic safety: Lessons learned from Damar
State High Football Increases Safety After Local Loss – Lions' Digest
Bills' Hamlin in critical condition after collapse on field
Pennsylvania high school football player who collapsed on field