IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-6-50489 Original Research Paper A Comparative Study Between Thoracic Epidural Block And Paravertebral Block Using Single Dose Ropivacaine For Intra-Operative Hemodynamic Parameters And Post-Operative Neelam Singh Dr. Dr. Arvind Kumar Dr. June 2023 12 6 01 02