Azad A, Taher S, Raihan J, Zahid MA, Rahman M, Alam MI. Hyperbaric 0.5% Bupivacain used in subarachnoid block which spread of anesthesia to cephalic at the different site of injection specially L 2-3, L 3-4, L 4-5 inter vertebral space. TAJ: J of Teachers Assoc [Internet]. 2018 Dec. 2 [cited 2024 Sep. 18];28(1):1-5. Available from: https://banglajol.info/index.php/TAJ/article/view/39039