Ranjha, Chaudhry Raheel, et al. “Comparison of Dexmedetomidine With Tramadol for Treatment of Shivering Post Spinal Anaesthesia”. Pakistan Armed Forces Medical Journal, vol. 73, no. 6, Dec. 2023, pp. 1671-4, https://doi.org/10.51253/pafmj.v73i6.6345.