Muhammad Javed Khan, Attique Ur Rehman Orakzai, Faiza Aslam, Hamid Mehmood, Pavan Kumar, Nazneen Iqbal 2023. 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. 17, 10 (Oct. 2023), 323. DOI:https://doi.org/10.53350/pjmhs20231710323.