Reddy, B. S., and K. Surya. “Comparison of Two Doses of Dexmedetomidine on Hemodynamic Parameters of Patients Undergoing Spinal Anesthesia”. International Journal of Advances in Medicine, vol. 6, no. 4, July 2019, pp. 1176-81, doi:10.18203/2349-3933.ijam20193267.