MANDAL, M. M.; PANCHAL, A. J.; KHER, S. B.; DUDHANI, H. G.; SHAH, V. D. Unusual case of congenital fistula between external auditory canal and nasopharynx. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 7, n. 5, p. 912–914, 2021. DOI: 10.18203/issn.2454-5929.ijohns20211595. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/2917. Acesso em: 6 oct. 2025.