A prospective comparative study of levobupivacaine hydrochloride 0.5% with ropivacaine hydrochloride 0.75% for peri-operative epidural anesthesia in infra- umbilical surgeries. Asian Journal of Medical Sciences, [S. l.], v. 15, n. 12, p. 33–39, 2024. DOI: 10.3126/ajms.v15i12.69595. Disponível em: https://nepjol.info/index.php/AJMS/article/view/69595. Acesso em: 12 jul. 2026.