Riccò, M., L. Vezzosi, G. Gualerzi, A. Odone, and C. Signorelli. “Knowledge, Attitudes, and Practices of Influenza and Pneumococcal Vaccines Among Agricultural Workers: Results of an Italian a Cross-Sectional Study”. Acta Bio Medica Atenei Parmensis, Vol. 90, no. 4, Dec. 2019, pp. 439-50, doi:10.23750/abm.v90i4.7631.