COVID-19 incidence following fan attendance: A case study of the National Football League 2020-2021 season - Kurland, J.; Piquero, A.; Leal, W. E.; Sorrell, E. M.; Piquero, N. L. (SSRN, 2021)
Keywords: American football; virus; infection; competition; spectator; USA; organizing; sports medicine; Switzerland; sport games; organisations and events