IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-4-34319 Original Research Paper A COMPARATIVE STUDY TO EVALUATE THE EFFICACY OF DULOXETINE IN POSTOPERATIVE PAIN RELIEF IN PATIENTS IN UNDERGOING LUMBAR SPINE SURGERY Deepti Chauhan Dr. Dr. Heena Sheikh Dr. April 2021 10 4 01 02