Comparative Evaluation of Intrathecal Clonidine and Fentanyl as Adjuvants to Hyperbaric Bupivacaine for Spinal Anaesthesia in Lower Limb Orthopaedic Surgery. ijmhs [Internet]. 2010 May 25 [cited 2026 Oct. 23];1(2):178-84. Available from: http://innovativejournal.in/index.php/ijmhs/article/view/3574