Umamageswari, M. S., K. Vasanthan, and T. M. Karthikeyan. “Potentiation of General Anaesthetic Activity of Ketamine by Memantine”. International Journal of Basic & Clinical Pharmacology, vol. 9, no. 1, Dec. 2019, pp. 146-50, doi:10.18203/2319-2003.ijbcp20195777.