Trabacchi, V., Odone, A., Lillo, L., Pasquarella, C., & Signorelli, C. (2015). Immunization practices in athletes. Acta Biomedica Atenei Parmensis, 86(2), 181-188. https://mattioli1885journals.com/index.php/actabiomedica/article/view/3943