“Impact of Shift Work and Other Work-Related Factors on Anti-SARS-CoV-2 Spike-Protein Serum Concentrations in Healthcare Workers After Primary MRNA Vaccination – a Retrospective Cohort Study”. Swiss Medical Weekly 154, no. 3 (March 27, 2024): 3708. Accessed October 14, 2025. https://www.smw.ch/index.php/smw/article/view/3708.