IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-4-34458 Original Research Paper A COMPARATIVE STUDY TO EVALUATE THE EFFICACY OF IN POSTOPERAT ETORICOXIB IN PAIN RELIEF IN PATIENTS IN UNDERGOING LUMBAR SPINE SURGERY Deepti Chauhan Dr. Dr. Sukhnandan Singh Tomar Dr. April 2021 10 4 01 02