Mohammed Gayaz, Vandana Talwar, Shipra Aggarwal, Bhavya Krishna. "Comparison of dexmedetomidine and ketamine on haemodynamic changes and perioperative analgesia in patients undergoing dorsolumbar spine surgery: A randomized controlled trial." Indian Journal of Clinical Anaesthesia (2026). https://doi.org/10.18231/j.ijca.13883.1766834396