I. R. Simanjuntak, A. Primaputra Lubis, A. Winata, and A. S. Wahyuni, “STOP-Bang Criteria as a Difficult Airway Predictor in Surgical Patients at a Primary Referral Hospital in North Sumatra”, Sumat. Med. J., vol. 9, no. 2, pp. 64–72, May 2026.