Brosi, Larissa, et al. “Development of a Unique Rapid Test to Detect Anti-Bodies Directed Against an Extended RBD of SARS-CoV-2 Spike Protein: FH-HES Universities of Applied Sciences”. CHIMIA, vol. 75, no. 5, May 2021, p. 446, https://doi.org/10.2533/chimia.2021.446.