Hammel, P., and F. Zenhausern. “RB571, RB572, RB573, RB574, RB575, RB576, RB577 and RB578 Antibodies Recognize a Fragment of the Membrane M Protein from SARS-CoV-2 by ELISA”. Antibody Reports, vol. 3, no. 4, July 2020, p. e230, doi:10.24450/journals/abrep.2020.e230.