1.
Giansante C, Stivanello E, Perlangeli V, Ferretti F, Marzaroli P, Musti MA, et al. COVID-19 vaccine effectiveness among the staff of the Bologna Health Trust, Italy, December 2020-April 2021. Acta Biomed [Internet]. 2021 Sep. 2 [cited 2024 Jul. 18];92(4):e2021270. Available from: https://mattioli1885journals.com/index.php/actabiomedica/article/view/11896