Surveillance testing for SARS-COV-2 infection in an asymptomatic athlete population: a prospective cohort study with 123 362 tests and 23 463 paired RT-PCR/antigen samples oleh Stephanie A Kliethermes, Kimberly Harmon, Doug F Aukerman, David J Petron, Anabelle M de St Maurice, Adam C Brady, Sankar Swaminathan, Miguel A Rueda, Kim Terrell, Randall P Cohen, Seth C Gamradt, Sunday D Henry, Lindsay M Huston, David R McAllister, Kenneth M McCarty, Anthony N Pass, Stephen R Paul