Risk factors and titers of COVID-19 infection in a longitudinal statewide seroepidemiology cohort oleh Elizabeth T. Rogawski McQuade, Lea Becker, Suzanne E. Stroup, Fauzia Khan, Bhruga Shah, John Brush, Gay Goldsmith, Rebecca Mullin, Danielle Guilliams, Christopher deFilippi, Kathleen Barackman, Andrea B. Mohr, Francis Farrell, Gonzalo Bearman, Lilian Peake, Eric R. Houpt