IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-5-49453 Original Research Paper Anaesthetic Efficacy Of Intrathecal Hyperbaric Bupivacaine With Or Without Low Dose Nalbuphine Hydrochloride For Abdominal Hysterectomy: A Randomized Control Study. Rahul Datta Roy Dr. Dr. Ranjit Reang Dr. May 2023 12 5 01 02