Croci, Roberto, et al. “Trends in Childhood Vaccinations Coverage in Lombardy Region After the National Vaccine Prevention Plan (2017-19) and the New Law on Mandatory Vaccinations”. Acta Biomedica Atenei Parmensis, vol. 91, no. 3-S, Apr. 2020, pp. 71-76, https://doi.org/10.23750/abm.v91i3-S.9458.