MUHAMMAD JAVED KHAN, ATTIQUE UR REHMAN ORAKZAI, FAIZA ASLAM, HAMID MEHMOOD, PAVAN KUMAR, NAZNEEN IQBAL. A Randomized Controlled Trial on the Effectiveness of Intrathecal Tramadol Versus Buprenorphine as Adjuvants to Hyperbaric Bupivacaine in Infraumbilical Surgeries. Pakistan Journal of Medical & Health Sciences, [S. l.], v. 17, n. 10, p. 323, 2023. DOI: 10.53350/pjmhs20231710323. Disponível em: https://pjmhsonline.com/index.php/pjmhs/article/view/6657. Acesso em: 5 dec. 2025.