Concordance between two rapid diagnostic tests for the detection of antibodies against SARS-CoV-2 Jaime de la Iglesia; Tania Fernández-Villa; Juan M. Fegeneda-Grandes; Manuel Gómez-García; Raúl Majo García; Silvia López Sanz; Patricia Mendez da Cuña; Marta Llaneza García; Alicia Marcos Sádaba; José Pedro Fernández Vázquez;