Naim Ismail Imunu, Isngadi, Rudy Vitraludyono, and Arie Zainul Fatoni. “Evaluation of Morphine-Sparing Efficacy With Low-Dose Ketamine in Pediatric Postoperative Pain: A Pilot Randomized Controlled Trial”. Open Access Indonesian Journal of Medical Reviews 6, no. 1 (December 23, 2025): 63-74. Accessed February 4, 2026. https://www.hmpublisher.com/index.php/OAIJMR/article/view/835.