Annepu Kiran Kumar and Nama Nagarjuna Chakravarthy, “Comparison of magnesium sulphate with clonidine and magnesium sulphate alone in terms of motor & sensory blockade as an adjuvant to hyperbaric bupivacaine during spinal anaesthesia- A prospective randomised clinical trial”, Int. J. Heal. Clin. Res., vol. 4, no. 17, pp. 1–4, Oct. 2021.