IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-3-34053 Original Research Paper Comparison of Tramadol as an Adjuvant to Intrathecal Isobaric Levobupivacaine for Elective lower limb surgeries under spinal anesthesia Shiv Shankar Jangid Dr. Dr. Mohammed Mishal Dr. March 2021 10 3 01 02