Napisporn Memongkol and Runchana Sinthavalai and Nattapong Seneeratanaprayune Weerawat Ounsaneha and Chanisada Choosuk, Development of Performance Indicators in Operational Level for Pre-hospital EMS in Thailand. journal = {International Journal of Health and Medical Engineering}, [online]. World Academy of Science, Engineering and Technology. October 2009, vol. 34(10). 1889 - 1894 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/5757.