Risk of COVID-19 in health-care workers in Denmark: an observational cohort study.
Lancet Infect Dis. 2020 Dec;20(12):1401-1408. doi: 10.1016/S1473-3099(20)30589-2. Epub 2020 Aug 3.
Lancet Infect Dis. 2020.
PMID: 32758438
Free PMC article.