Pirotesak S, Amornyotin S, Chumthong S, Supan W. A comparison Between Propofol with and without Ephedrine on Hemodynamic Parameters in Propofol-Based Deep Sedation for Colonoscopy. Thai J Anesthesiol [internet]. 2025 Jan. 7 [cited 2026 Sep. 20];51(1):15-22. available from: https://he02.tci-thaijo.org/index.php/anesthai/article/view/273054