Elanda Rahmat Arifyanto, Ardana Tri Arianto and Heri Dwi Purnomo (2025) “Opioid-Sparing Anesthesia: The Dual Efficacy of Ketamine on Postoperative Pain and Systemic Inflammation Following Spinal Surgery”, Journal of Anesthesiology and Clinical Research, 6(2), pp. 986-999. doi: 10.37275/jacr.v6i2.804.