Frasier, Alicia, Heidi Guyer, Laura DiGrande, Rose Domanico, Darryl Cooney, and Stephanie Eckman. 2020. “Design for a Mail Survey to Determine Prevalence of SARS-CoV-2 (COVID-19) Antibodies in the United States”. Survey Research Methods 14 (2):131-39. https://doi.org/10.18148/srm/2020.v14i2.7757.