RICCĂ’, M.; VEZZOSI, L.; GUALERZI, G.; ODONE, A.; SIGNORELLI, C. 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, v. 90, n. 4, p. 439-450, 23 Dec. 2019.