“A Comparative Study Of Intrathecal Hyperbaric Bupivacaine 0.5% With Clonidine Versus Plain Hyperbaric Bupivacaine 0.5% In Adults Undergoing Lower Abdominal Surgery”. International Journal of Environmental Sciences (June 2, 2025): 1666–1673. Accessed September 14, 2025. http://theaspd.com/index.php/ijes/article/view/3355.