Diagnostic accuracy of ultrasound findings for distinguishing complicated appendicitis from simple appendicitis in pediatric patients: A systematic review and meta-analysis. Panorama of Emergency Medicine, [S. l.], v. 4, n. 2, 2026. DOI: 10.26738/poem.v4i2.8. Disponível em: https://panoramaoem.cloud/index.php/home/article/view/64. Acesso em: 5 apr. 2026.