Piapan, L., E. Mazzolini, M. Tomietto, F. Barbone, and F. Larese Filon. “Epidemiology of SARS-CoV-2 Among Healthcare Workers in North-Eastern Italy from March 1, 2020 to May 10, 2020: COVID-19 Screening in Health Care Workers”. La Medicina Del Lavoro | Work, Environment and Health, vol. 112, no. 6, Dec. 2021, pp. 422-8, doi:10.23749/mdl.v112i6.12186.