Ahmed, G. U. ., M. K. . Mondal, B. R. . Roy, A. . Badrudozza, S. . Yeasmeen, D. K. . Bhowmick, and A. . Akhtaruzzaman. “Effects of Preemptive Ketamine on Postoperative Analgesia After Total Abdominal Hysterectomy (TAH) under General Anaesthesia”. Journal of the Bangladesh Society of Anaesthesiologists, vol. 25, no. 1, Aug. 2014, pp. 3-8, doi:10.3329/jbsa.v25i1.60953.