Sombood, Pattharaporn, Kornnika Yangan, and Phongthara Vichitvejpaisal. 2021. “Perioperative Cognition in the Elderly: A Matter not to be Overlooked”. Thai Journal of Anesthesiology 47 (3):280-86. https://he02.tci-thaijo.org/index.php/anesthai/article/view/250936.