“Magnesium sulfate vs clonidine as an adjunct to epidural bupivacaine: A randomized controlled study”, AJPHS, vol. 9, no. 2, pp. 2078–2083, Jun. 2019, Accessed: Feb. 27, 2026. [Online]. Available: https://www.ajphs.com/index.php/ajphs/article/view/179