The Comparison of Analgesic Efficacy of Epidurally Given Tramadole and Morphine in Pediatric Urologic Operations . Annals of Medical Research, [S. l.], v. 10, n. 2, p. 0071–0075, 2021. Disponível em: http://www.annalsmedres.org/index.php/aomr/article/view/2962. Acesso em: 10 may. 2025.