GUPTA, A.; GUPTA, A.; JAMWAL, P. S. Foreign bodies in esophagus. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 5, n. 3, p. 608–612, 2019. DOI: 10.18203/issn.2454-5929.ijohns20191621. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/1565. Acesso em: 2 nov. 2025.