Seroprevalence as an Indicator of Undercounting of COVID-19 Cases in a Large Well-Described Cohort oleh Kevin M. Taylor, MD, Keersten M. Ricks, PhD, Paul A. Kuehnert, MS, Angelia A. Eick-Cost, PhD, Mark R. Scheckelhoff, PhD, Andrew R. Wiesen, MD, Tamara L. Clements, MS, Zheng Hu, MS, Samantha E. Zak, MS, Scott P. Olschner, BS, Andrew S. Herbert, PhD, Sara L. Bazaco, PhD, Kathleen E. Creppage, DrPH, Michael T. Fan, PhD, Jose L. Sanchez, MD