Ferrara, P., L. Albano, and V. Gianfredi. “Measuring Meningococcal Vaccination Coverage Among Adolescents in Italy: State-of-the-Art and Regional Challenges”. Acta Biomedica Atenei Parmensis, vol. 93, no. 3, July 2022, p. e2022069, doi:10.23750/abm.v93i3.12533.