ISLAM, S. . Efficacy of COVID-19 Vaccine. Journal of Preventive and Social Medicine, [S. l.], v. 40, n. 2, p. 65–72, 2022. DOI: 10.3329/jopsom.v40i2.61799. Disponível em: https://banglajol.info/index.php/JOPSOM/article/view/61799. Acesso em: 1 sep. 2024.