GONZÁLEZ, Yasmin. Efficacy of influenza vaccine in adults. Systematic review. SAP Multidisciplinary Open, [S. l.], v. 1, p. 34, 2023. DOI: 10.62486/mo202334. Disponível em: https://mo.southam.pub/index.php/mo/article/view/34.. Acesso em: 19 sep. 2026.