A Multiplex Noninvasive Salivary Antibody Assay for SARS-CoV-2 Infection and Its Application in a Population-Based Survey by Mail oleh Andrey I. Egorov, Shannon M. Griffin, Miyu Fuzawa, Jason Kobylanski, Rachel Grindstaff, William Padgett, Steven Simmons, Daniel R. Hallinger, Jennifer N. Styles, Lindsay Wickersham, Elizabeth Sams, Edward Hudgens, Timothy J. Wade