Signorelli, Carlo, and Anna Odone. “Updates on COVID-19 Control and Vaccination Campaigns (COVID-19 and Non COVID-19)”. Acta Biomedica Atenei Parmensis 92, no. S6 (October 1, 2021): e2021550. Accessed December 19, 2025. https://www.mattioli1885journals.com/index.php/actabiomedica/article/view/14737.