Prapaitrakool, Sunisa, and Suntaree Kongsayreepong. 2016. “Perioperative Blood Transfusion in Cardiac Surgery at Thammasat University Hospital: A retrospective review”. Thai Journal of Anesthesiology 40 (1):7-16. https://he02.tci-thaijo.org/index.php/anesthai/article/view/59430.