Coggiola, Maurizio, et al. “SARS-CoV-2 Infection: Efficacy of Extensive Vaccination of the Healthcare Workforce in a Large Italian Hospital”.
La Medicina Del Lavoro
, vol. 112, no. 6, Dec. 2021, pp. 465-76,
https://doi.org/10.23749/mdl.v112i6.12124
.