IFTIKHAR, A.; SABAR, M. F.; AHMAD, Q. ul A.; FAROOQ, R.; AKHTAR, M. Different Covid-19 Vaccines in Pakistan: Administration and Effectiveness. National Journal of Health Sciences, [S. l.], v. 8, n. 3, p. 132-136, 2023. Disponível em: https://ojs.njhsciences.com/index.php/njhs/article/view/455. Acesso em: 17 jun. 2024.