Ahmed Uddin Soomro, Imran Ali, Zaheer Ahmed, Khawar Aziz, Kelash Kumar, Imran Hafeez (2023) “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(05), p. 493. doi: 10.53350/pjmhs2023175493.