Ponsen, Kittipong, Teera Sirisamutr, Teera Sirisamutr, and Porntip Wachiradilok. 2018. “The Situation of Using Emergency Medical Services at the Emergency Department of Emergency Patients in Thailand”. Thai Journal of Health Education 41 (2):51-63. https://he01.tci-thaijo.org/index.php/muhed/article/view/155683.