VERSATILE IN COMBINATION; TRAMADOL AND BUPIVACAINE, AS CAUDAL BLOCKANALGESIA FOR PEDIATRIC INFRA-UMBILICAL SURGERIES. Baqai Journal of Health Sciences, [S. l.], v. 23, n. 01, 2024. Disponível em: https://journals.baqai.edu.pk/index.php/CS/article/view/66.. Acesso em: 18 feb. 2026.