Mishra, S. C., and S. Chowdhury. “Effects of Preoperative Dexmedetomidine on the Occurrence of Postoperative Delirium in Adult Cardiac Surgery Patients”. International Journal of Research in Medical Sciences, vol. 11, no. 6, May 2023, pp. 2191-5, doi:10.18203/2320-6012.ijrms20231641.