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 [Internet]. 2023 Jul. 27 [cited 2024 Jul. 17];17(05):493. Available from: https://pjmhsonline.com/index.php/pjmhs/article/view/5074