Differences in SARS-CoV-2 antibody prevalence at the end of the pre-vaccination period between age groups: A cross-sectional analysis of the multi-ethnic population-based HELIUS study. - Bolijn R; Spijkerman AMW; Galenkamp H; Blokstra A; Coyer L; Boyd A; Prins M; Stronks K (PloS one, 2024)