“Anti-SARS-CoV-2 Total Immunoglobulin and Neutralising Antibody Responses in Healthy Blood Donors Throughout the COVID-19 Pandemic: A Longitudinal Observational Study”. Swiss Medical Weekly 154, no. 7 (July 1, 2024): 3408. Accessed December 9, 2025. https://smw.ch/index.php/smw/article/view/3408.