SARDAR, J. C.; SAREN, A. B.; HALDAR, D.; CHATTERJEE, K.; BISWAS, S.; CHATTERJEE, T.; SARKAR, G. N. Obstinate diphtheria needs innovation in immunization. International Journal of Contemporary Pediatrics, [S. l.], v. 3, n. 3, p. 902–909, 2016. DOI: 10.18203/2349-3291.ijcp20162363. Disponível em: https://www.ijpediatrics.com/index.php/ijcp/article/view/44. Acesso em: 7 nov. 2025.