Naz, A., Baig, M.S., Kumar, V., Khan, S. and Javed, S. 2021. Addition of low dose ketamine to tramadol for prevention of post–anesthetic shivering: a comparative study. Anaesthesia, Pain & Intensive Care. 25, 5 (Sep. 2021), 596–601. DOI:https://doi.org/10.35975/apic.v25i5.1626.