Increasing test specificity without impairing sensitivity: lessons learned from SARS-CoV-2 serology. - Perkmann T; Koller T; Perkmann-Nagele N; Ozsvar-Kozma M; Eyre D; Matthews P; Bown A; Stoesser N; Breyer MK; Breyer-Kohansal R; Burghuber OC; Hartl S; et al. (Journal of clinical pathology, 2023)