Kittikornchaichan, K., P. Jansagiam, N. Chaichamnanvwet, A. Artthakul, N. Homsuk, and P. Gerdsuk. “Effects of Preanesthetic Evaluation With Video Information on Preoperative Anxiety in Patients Undergoing Surgery at Burapha University Hospital”. Srinagarind Medical Journal, vol. 31, no. 3, June 2016, pp. 299-05, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/58480.