SWAIN, S. K.; DAS, A.; ACHARYA, S.; MOHANTY, J. N. Transnasal endoscopic eustachian tube balloon dilation: a review. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 6, n. 1, p. 207–212, 2019. DOI: 10.18203/issn.2454-5929.ijohns20195716. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/1820. Acesso em: 17 jul. 2025.