Comparison of Caudal Ropivacaine with Ketamine and Ropivacaine with Midazolam for Pediatric Infraumbilical Surgery Analgesia. Annals of Medicine and Medical Sciences, [S. l.], p. 433–436, 2025. Disponível em: https://ammspub.com/index.php/amms/article/view/195. Acesso em: 6 sep. 2025.