IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-1-33127 Original Research Paper Ketamine infusion for management of early postoperative pain following elective laparoscopic cholecystectomy: Assessment of optimum dose Bani Parvati Magda Dr. Laha Baisakhi Dr. January 2021 10 1 01 02