K. Nakkarin, W. Panomai, and A. Butpho, “Effect of General Anesthesia Induction with a Combination of Propofol and Etomidate Versus Propofol Alone on I-gel Laryngeal Mask Airway Insertion”, J Med Health Sci, vol. 33, no. 1, pp. 23–31, Apr. 2026.