Squeri, Raffaele, et al. “Correct Management and Low Rate of Contagiousness of Healthcare Workers in a University Hospital in Southern Italy: From Contact Tracing to Serological Investigation”. Acta Biomedica Atenei Parmensis, vol. 91, no. 9-S, July 2020, pp. 79-86, https://doi.org/10.23750/abm.v91i9-S.10118.