Evaluation and comparison of clinical efficacy, post-operative analgesia and hemodynamic effect of intrathecal hyperbaric bupivicaine versus intrathecal hyperbaric bupivicaine plus neostigmine during lower abdominal and lower limb surgeries. IJFANS. 2022;11(7):1716-1727. Accessed September 2, 2026. https://www.ijfans.org/index.php/Journal/article/view/6761