“Comparison of Bupivacaine Hydrochloride and Bupivacaine Hydrochloride with Tramadol Hydrochloride in Caudal Epidural Analgesia in Children Undergoing Infraumbilical Surgeries” (2025) Annals of Medicine and Medical Sciences, pp. 800–803. Available at: http://ammspub.com/index.php/amms/article/view/289 (Accessed: 14 November 2025).