Montecucco, Alfredo, et al. “Investigating SARS-CoV-2 Transmission Among Co-Workers in a University of Northern Italy During COVID-19 Pandemic: An Observational Study”. La Medicina Del Lavoro | Work, Environment and Health, vol. 112, no. 6, Dec. 2021, pp. 429-35, https://doi.org/10.23749/mdl.v112i6.12527.