Jamliya, D. R. H.; Vansola, D. R.; Shah, D. B. J.; Chauhan, D. L. Effect of Clonidine Addition To Hyperbaric 0.5% Bupivacaine For Spinal Anaesthesia In Lower Limb Surgery [A Comparative Study]: Low Dose Bupivacaine- Clonidine In Spinal Anaesthesia. Natl J Integr Res Med 2012, 3, 100-106.