Multistep screening and selection of COVID-19 convalescent plasma donors at the early stage of the SARS-CoV-2 pandemic: A retrospective analysis. - Brosig AM; Ossner T; Pamler I; Friedinger S; Bica AF; Mohrez M; Tlili I; Mueller V; Becke C; Haehnel V; Baeuerlein V; Stemmer B; et al. (Health science reports, 2022)