5th and 6th Sero Survey of Delhi: Vaccine Activated Antibodies Enhancement. European Journal of Medical and Health Sciences, [S. l.], v. 4, n. 1, p. 61–66, 2022. DOI: 10.24018/ejmed.2022.4.1.1152. Disponível em: https://mail.ej-med.org/index.php/ejmed/article/view/1152. Acesso em: 11 oct. 2025.