Dose response characteristics of intrathecal hyperbaric bupivacaine (0.5%) by using sequential combined spinal epidural anaesthesia for orthopaedic surgeries of lower limb. AJPHS [Internet]. 2018 Mar. 30 [cited 2025 Oct. 15];8(1):1820-5. Available from: https://ajphs.com/index.php/ajphs/article/view/253