Khalid, S., Ahmad, H., Khalid, M. and Khalid, M. 2025. Comparison of Effectiveness of Intrathecal Tramadol versus Intravenous Tramadol in Prevention of Post-Anesthesia Shivering in Patients Undergoing Lower Limb Orthopedic Surgeries under Subarachnoid Block: A Comparative Study: Intrathecal vs Intravenous Tramadol in Post-Anesthesia Shivering. Pakistan Journal of Health Sciences. 6, 10 (Oct. 2025), 26–30. DOI:https://doi.org/10.54393/pjhs.v6i10.3322.