DE SA, C. J. A.; GOEL, H. C. A comprehensive study of oesophageal foreign bodies. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 3, n. 4, p. 1060–1063, 2017. DOI: 10.18203/issn.2454-5929.ijohns20174333. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/547. Acesso em: 2 feb. 2026.