“…The study focused on research published in Thailand's EMS database of Scopus. After collecting the results, there were 25 relevant articles which were found to be in accordance with the objectives of the study [6], [7], [8], [9], [10], [11], [12] [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30]. Most of the articles study pre-hospital operations, both in terms of personnel working, budget used, and the effects on the patients' outcomes.…”