Ahmed Uddin Soomro, Imran Ali, Zaheer Ahmed, Khawar Aziz, Kelash Kumar, Imran Hafeez. “The Efficacy of a Caudal Bupivacaine and Bupivacaine-Tramadol Combination for Postoperative Analgesia in Pediatric Lower Abdominal Surgeries”. Pakistan Journal of Medical & Health Sciences 17, no. 05 (July 27, 2023): 493. Accessed July 17, 2024. https://pjmhsonline.com/index.php/pjmhs/article/view/5074.