Corrigendum to: An Application to Support COVID-19 Occupational Health and Patient Tracking at a Veterans Affairs Medical Center. (11th December 2020) - Fillmore, Nathanael R; Elbers, Danne C; La, Jennifer; Feldman, Theodore C; Sung, Feng-Chi; Hall, Robert B; Nguyen, Vinh; Link, Nicholas; Zwolinski, Robert; Dipietro, Svitlana; Miller, Stephen J; Aleksanyan, Anahit; et al.