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Matsumoto H, Mashiko K, Hara Y, Sakamoto Y, Kutsukata N, Takei K, et al. Effectiveness of a \u201cdoctor-helicopter\u201d system in Japan. <i>Isr Med Assoc J<\/i> 2006; 8: 8\u201311."},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Sawahata M, Shirakabe A, Matsushita M, Shigihara S, Nishigoori S, Sawatani T, et al. Age-specific differences in non-surgical patients requiring intensive care: Trends and prognostic impact during the past decade. <i>Circ J<\/i> 2025; 89: 1813\u20131823.","DOI":"10.1253\/circj.CJ-24-1030"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. Alstrup K, M\u00f8ller TP, Knudsen L, Hansen TM, Petersen JAK, Rogn\u00e5s L, et al. Characteristics of patients treated by the Danish Helicopter Emergency Medical Service from 2014\u20132018: A nationwide population-based study. <i>Scand J Trauma Resusc Emerg Med<\/i> 2019; 27: 102.","DOI":"10.1186\/s13049-019-0672-9"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. Hata N, Shinada T, Kobayashi N, Tomita K, Kitamura M, Nozaki A, et al. Severity of cardiovascular disease patients transported by air ambulance. <i>Air Med J<\/i> 2011; 30: 328\u2013332.","DOI":"10.1016\/j.amj.2011.05.004"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5. Nishigoori S, Kobayashi N, Shibata Y, Shirakabe A, Yagi T, Takano M, et al. Helicopter emergency medical service for patients with acute coronary syndrome: Selection validity and impact on clinical outcomes. <i>Heart Vessels<\/i> 2022; 37: 1125\u20131135.","DOI":"10.1007\/s00380-022-02022-1"},{"key":"6","doi-asserted-by":"crossref","unstructured":"6. M\u00f8rk SR, B\u00f8tker MT, Hjort J, Jensen LO, Pedersen F, J\u00f8rgensen G, et al. Use of helicopters to reduce health care system delay in patients with ST-elevation myocardial infarction admitted to an invasive center. <i>Am J Cardiol<\/i> 2022; 171: 7\u201314.","DOI":"10.1016\/j.amjcard.2022.01.042"},{"key":"7","doi-asserted-by":"crossref","unstructured":"7. Moens D, Stipulante S, Donneau AF, Hartstein G, Pirotte O, D\u2019orio V, et al. Air versus ground transport of patients with acute myocardial infarction: Experience in a rural-based helicopter medical service. <i>Eur J Emerg Med<\/i> 2015; 22: 273\u2013278.","DOI":"10.1097\/MEJ.0000000000000149"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8. Matsumoto H, Kanemaru K, Hara Y, Yagi T, Saito N, Tetsu S, et al. Development of an educational program for the helicopter emergency medical services in Japan. <i>Air Med J<\/i> 2013; 32: 84\u201387.","DOI":"10.1016\/j.amj.2012.06.011"},{"key":"9","doi-asserted-by":"crossref","unstructured":"9. McDonagh TA, Metra M, Adamo M, Gardner RS, Baumbach A, B\u00f6hm M, et al. 2021 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. <i>Eur Heart J<\/i> 2021; 42: 3599\u20133726.","DOI":"10.1093\/eurheartj\/ehab368"},{"key":"10","unstructured":"10. Evans L, Rhodes A, Alhazzani W, Antonelli M, Coopersmith CM, French C, et al. Surviving sepsis campaign: International Guidelines for management of sepsis and septic shock 2021. <i>Crit Care Med<\/i> 2021; 49: e1063\u2013e1143."},{"key":"11","doi-asserted-by":"crossref","unstructured":"11. Kimura K, Kimura T, Ishihara M, Nakagawa Y, Nakao K, Miyauchi K, et al. JCS 2018 Guideline on diagnosis and treatment of acute coronary syndrome. <i>Circ J<\/i> 2019; 83: 1085\u20131196.","DOI":"10.1253\/circj.CJ-19-0133"},{"key":"12","doi-asserted-by":"crossref","unstructured":"12. Tsutsui H, Isobe M, Ito H, Ito H, Okumura K, Ono M, et al. 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