Samuel, Shobha Jacob. 2020. “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”. International Journal of Health and Clinical Research 3 (7):1-6. https://ijhcr.com/index.php/ijhcr/article/view/254.