Muhammad Zain, Mukhtiar Ahmad, Sehar Saif, Nimra Zulfiqar, Zeenat Shaheen, Adan Amjad, et al. Pharmacological Comparison of Ketamine and Tramadol for Prevention of Shivering During Spinal Anesthesia. JHWCR [Internet]. 2025 May 23 [cited 2026 Jun. 2];3(4):e262. Available from: https://jhwcr.com/index.php/jhwcr/article/view/262