COLUCCI, Maria Eugenia et al. On field vaccine effectiveness in three periods of 2018/2019 influenza season in Emilia-Romagna Region. Acta Biomedica Atenei Parmensis, Fidenza, Italy, v. 90, n. 9-S, p. 21–27, 2019. DOI: 10.23750/abm.v90i9-S.8699. Disponível em: https://mattioli1885journals.com/index.php/actabiomedica/article/view/8699.. Acesso em: 16 dec. 2024.