Roy, A., S. Sarkar, A. Chatterjee, and A. Banerjee. “A Comparative Study Between Dexmedetomidine and Propofol for Maintaining Depth of Anesthesia in Elective Craniotomy: A Prospective Randomized Double Blind Study”. International Journal of Research in Medical Sciences, vol. 3, no. 11, Jan. 2017, pp. 3238-44, doi:10.18203/2320-6012.ijrms20151169.