Suriyachaisawat, Jirapat, and Ekkit Surakarn. “The Characteristics of Aeromedical Transport Missions at Bangkok Hospital, Thailand”. The Bangkok Medical Journal 6, no. 1 (September 20, 2014): 12. Accessed October 18, 2021. https://he02.tci-thaijo.org/index.php/bkkmedj/article/view/218114.