1. Anderson JL. 2013 ACCF/AHA guideline for the management of ST-elevation myo- cardial infarction: a report of the American College of Cardiology Foundation/ American Heart Association Task Force on practice guidelines. Circulation. 2013;127:362–425.
2. Chung SC, Gedeborg R, Nicholas O, et al. Acute myocardial infarction: a comparison of short-term survival in national outcome registries in Sweden and the UK. Lancet. 2014;383:1305–1312.
3. Masuda J, Kishi M, Kumagai N, et al. Rural-urban disparity in emergency care for acute myocardial infarction in Japan. Circ J. 2018;82:1666–1674.
4. Gamble JM, Eurich DT, Ezekowitz JA, et al. Patterns of care and outcomes differ for urban versus rural patients with newly diagnosed heart failure, even in a universal healthcare system. Circ Heart Fail. 2011;4:317–323.
5. Amoah PA, Edusei J, Amuzu D. Social networks and health: understanding the nuances of healthcare access between urban and rural populations. Int J Environ Res Public Health. 2018;15:973.
6. Matsuzawa Y, Konishi M, Nakai M, et al. In-hospital mortality in acute myocardial infarction according to population density and primary angioplasty procedures volume. Circ J. 2020;84:1140–1146.
7. Tsuchiya A, Tsutsumi Y, Yasunaga H. Outcomes after helicopter versus ground emergency medical services for major trauma−propensity score and instrumental variable analyses: a retrospective nationwide cohort study. Scand J Trauma Resusc Emerg Med. 2016;24:140.
8. Abe T, Takahashi O, Saitoh D, et al. Association between helicopter with physician versus ground emergency medical services and survival of adults with major trauma in Japan. Crit Care. 2014;18:R146.
9. Lee Il J, Lee KH, Kim OH. Comparative study on the outcome of stroke patients transferred by doctor helicopters and ground ambulances in South Korea: a retro- spective controlled study. Emerg Med Int. 2020;2020:1–7.
10. Brown JB, Leeper CM, Sperry JL, et al. Helicopters and injured kids. J Trauma Acute Care Surg. 2016;80:702–710.
11. Buchanan IM, Coates A, Sne N. Does mode of transport confer a mortality benefit in trauma patients? Characteristics and outcomes at an Ontario lead trauma hospital. CJEM. 2016;18:3630369.
12. Mixon TA, Colato L. Impact of mode of transportation on time to treatment in patients transferred for primary percutaneous coronary intervention. J Emerg Med. 2014;47:247–253.
13. Thomas MD, Hinds R, Walker C, et al. Safety of aeromedical repatriation after myo- cardial infarction: a retrospective study. Heart. 2006;92:1864–1865.
14. Schneider MA, McMullan JT, Lindsell CJ, et al. Reducing door-in door-out intervals in helicopter ST-segment elevation myocardial infarction interhospital transfers. Air Med J. 2017;36:244–247.
15. Moens D, Stipulante S, Donneau A, et al. Air versus ground transport of patients with acute myocardial infarction. Eur J Emerg Med. 2015;22:273–278.
16. Mun~oz D, Roettig ML, Monk L, et al. Transport time and care processes for patients transferred with ST-segment−elevation myocardial infarction. Circ Cardiovasc Interv. 2012;5:555–562.
17. Funder KS, Rasmussen LS, Siersma V, et al. Helicopter vs. ground transportation of patients bound for primary percutaneous coronary intervention. Acta Anaesthesiol Scand. 2018;62:568–578.
18. Nicholson BD, Dhindsa HS, Roe MT, et al. Relationship of the distance between non-PCI hospitals and primary PCI centers, mode of transport, and reperfusion time among ground and air interhospital transfers using NCDR’s ACTION registry- GWTG: a report from the American heart association mission: L. Circ Cardiovasc Interv. 2014;7:797–805.
19. Hesselfeldt R, Pedersen F, Steinmetz J, et al. Implementation of a physician-staffed helicopter: impact on time to primary PCI. EuroIntervention. 2013;9:477–483.
20. McMullan JT, Hinckley W, Bentley J, et al. Reperfusion is delayed beyond guideline recommendations in patients requiring interhospital helicopter transfer for treat- ment of ST-segment elevation myocardial infarction. Ann Emerg Med. 2011;57:213–220.e1.
21. Ohsaka H, Omori K, Takeuchi I, et al. Acute coronary syndrome evacuated by a heli- copter from the scene. Air Med J. 2017;36:179–181.
22. Hata N, Kobayashi N, Imaizumi T, et al. Use of an air ambulance system improves time to treatment of patients with acute myocardial infarction. Intern Med. 2006;45:45–50.
23. Homma H, Niiyama Y, Sonoda H, et al. The impact of air transport for acute coro- nary syndrome patients. Air Med J. 2019;38:73–77.
24. Fukuoka S, Kurita T, Dohi K, et al. Untangling the obesity paradox in patients with acute myocardial infarction after primary percutaneous coronary intervention (detail analysis by age). Int J Cardiol. 2019;289:12–18.
25. Takasaki A, Kurita T, Masuda J, et al. Prevalence and prognosis of familial hyper- cholesterolemia in patients with acute coronary syndrome in Mie Prefecture, Japan¡report From Mie ACS Registry. Circ J. 2020;85:9–18.
26. Thygesen K, Alpert JS, Jaffe AS, et al. Third universal definition of myocardial infarc- tion. J Am Coll Cardiol. 2012;60:1581–1598.
27. Keeley EC, Boura JA, Grines CL. Primary angioplasty versus intravenous thrombo- lytic therapy for acute myocardial infarction: a quantitative review of 23 rando- mised trials. Lancet. 2003;361:13–20.
28. Bonnefoy E, Lapostolle F, Leizorovicz A, et al. Primary angioplasty versus prehospi- tal fibrinolysis in acute myocardial infarction: a randomised study. Lancet. 2002;360:825–829.
29. Prasad A, Gersh BJ, Mehran R, et al. Effect of ischemia duration and door-to-balloon time on myocardial perfusion in ST-segment elevation myocardial infarction: an analysis from HORIZONS-AMI Trial (Harmonizing Outcomes with Revasculariza- tion and Stents in Acute Myocardial Infarction). JACC Cardiovasc Interv. 2015;8:1966–1974.
30. Hakim R, Revue E, Saint Etienne C, et al. Does helicopter transport delay prehospi- tal transfer for STEMI patients in rural areas? Findings from the CRAC France PCI registry. Eur Hear J Acute Cardiovasc Care. 2020;9:958–965.
31. Clemmensen P, Schoos MM, Lindholm MG, et al. Pre-hospital diagnosis and trans- fer of patients with acute myocardial infarction - a decade long experience from one of Europe’s largest STEMI networks. J Electrocardiol. 2013;46:546–552.
32. Rushworth GF, Bloe C, Lesley Diack H, et al. Pre-hospital ECG E-transmission for patients with suspected myocardial infarction in the highlands of Scotland. Int J Environ Res Public Health. 2014;11:2346–2360.
33. Kahlon TS, Barn K, Akram MM, et al. Impact of pre-hospital electrocardiograms on time to treatment and one year outcome in a rural regional ST-segment elevation myocardial infarction network. Catheter Cardiovasc Interv. 2017;89:245–251.