“Dose response characteristics of intrathecal hyperbaric bupivacaine (0.5%) by using sequential combined spinal epidural anaesthesia for orthopaedic surgeries of lower limb”, AJPHS, vol. 8, no. 1, pp. 1820–1825, Mar. 2018, Accessed: Mar. 13, 2026. [Online]. Available: https://ajphs.com/index.php/ajphs/article/view/253