MOHAN M., B.; P., S. K.; V. J., V.; M., K. A study on radio opaque foreign body in digestive tract of children. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 4, n. 2, p. 352–355, 2018. DOI: 10.18203/issn.2454-5929.ijohns20180503. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/842. Acesso em: 17 jan. 2026.