Uma Mandal, Indranil Halder, Keya Chakraborty. Comparative study of bupivacaine-fentanyl versus bupivacaine-clonidine in patients undergoing spinal anaesthesia for lower abdominal surgery. Int. J. Heal. Clin. Res. [Internet]. 2022Jan.17 [cited 2026Aug.18];5(2):843-9. Available from: https://www.ijhcr.com/index.php/ijhcr/article/view/4926