Muhammad Zain; Mukhtiar Ahmad; Sehar Saif; Nimra Zulfiqar; Zeenat Shaheen; Adan Amjad; Imad Ud Din. Pharmacological Comparison of Ketamine and Tramadol for Prevention of Shivering During Spinal Anesthesia. JHWCR 2025, e262. https://doi.org/10.61919/7re8cc17.