CHANDRAN, P.; LILABI, M. P.; BINA, T.; THAVODY, J.; GEORGE, S. Re-emergence of diphtheria in Kerala: the need for change in vaccination policy. International Journal Of Community Medicine And Public Health, [S. l.], v. 6, n. 2, p. 829–835, 2019. DOI: 10.18203/2394-6040.ijcmph20190216. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/4168. Acesso em: 27 oct. 2025.