TAHIR, M. J.; WAZIR, M. Z.; ULLAH, I. BARRIERS TO IMMUNIZATION IN PAKISTAN. Annals of Allied Health Sciences, [S. l.], v. 6, n. 1, 2020. Disponível em: https://aahs.kmu.edu.pk/index.php/aahs/article/view/103. Acesso em: 5 may. 2024.