“LOW DOSE KETAMINE AT INDUCTION OF ANESTHESIA CAN HAVE OPIOID SPARING EFFECTS IN IMMEDIATE POST-OPERATIVE PERIOD FOLLOWING LAPAROSCOPIC CHOLECYSTECTOMY”. The Research of Medical Science Review, vol. 3, no. 3, Mar. 2025, pp. 186-91, http://thermsr.com/index.php/Journal/article/view/724.