Ienghong, Kamonwon. “Factors Affecting Length of Stay More Than 4 Hours in the Emergency Department of Srinagarind Hospital”. Srinagarind Medical Journal 29, no. 1 (March 26, 2014): 7–13. Accessed March 29, 2024. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/17279.