M. . Ashfaq, A. A. . Qadri, F. . Nigar, S. ., A. . Hanif, and I. . Aziz, “Efficacy of Prophylactic Low-Dose Ketamine Versus Tramadol for Prevention of Shivering During Spinal Anesthesia”, Pak Armed Forces Med J, vol. 76, no. SUPPL-7, Jul. 2026, doi: 10.51253/pafmj.v76iSUPPL-7.9844.