Raksakietisak, Manee, Chutimart Ngamlamiad, Tithiganya Duangrat, Suvit Soontarinka, Kasana Raksamani, and Sathit Chairatthanawanit. 2016. “Hemodynamic Effects of Anesthetic Induction in Elderly Patients Undergoing Cardiac Surgery: A Randomized Double - Blinded Study Between Etomidate and Thiopentone”. Thai Journal of Anesthesiology 41 (1):1-10. https://he02.tci-thaijo.org/index.php/anesthai/article/view/58767.