Ferrara, Pietro, Luciana Albano, and Vincenza Gianfredi. “Measuring Meningococcal Vaccination Coverage Among Adolescents in Italy: State-of-the-Art and Regional Challenges”. Acta Biomedica Atenei Parmensis 93, no. 3 (July 1, 2022): e2022069. Accessed September 25, 2022. https://mattioli1885journals.com/index.php/actabiomedica/article/view/12533.