FIRMAN, K.; DARUSSALAM, D.; SURADI, R. Plain abdominal radiograph appearance in children with abdominal pain. Paediatrica Indonesiana, [S. l.], v. 42, n. 9-10, p. 212–6, 2006. DOI: 10.14238/pi42.5.2002.212-6. Disponível em: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/1021. Acesso em: 20 apr. 2025.