1. Division of Environmental Medicine and Population Sciences; Department of Social and Environmental Medicine; Graduate School of Medicine; Osaka University; Suita Japan
2. Kyoto University Health Service; Kyoto Japan
3. Emergency and Critical Care Medicine; Seirei Hamamatsu General Hospital; Hamamatsu Japan
4. Department of Emergency and Disaster Medicine; Tohoku Medical and Pharmaceutical University; Sendai Japan
5. Division of Anesthesiology; St. Mary's Hospital; Kurume Japan
6. Department of Emergency, Disaster, and Critical Care Medicine; Faculty of Medicine; Kagawa University; Kagawa Japan
7. Division of Emergency and Critical Care Medicine; Department of Acute Medicine; Nihon University School of Medicine; Tokyo Japan
8. Nagasaki University Hospital Emergency Medical Center; Nagasaki Japan
9. Department of Cardiovascular Medicine; National Cerebral and Cardiovascular Center Hospital; Suita Osaka Japan
10. Advanced Medical Emergency and Critical Care Center; Yamaguchi University Hospital; Ube Japan
11. Department of Public Health; Graduate School of Medicine; The University of Tokyo; Tokyo Japan
12. Department of Emergency and Critical Care Medicine; Saitama Medical Center; Saitama Medical University; Kawagoe Japan
13. Department of Emergency and Disaster Medicine; Gifu University Graduate School of Medicine; Yanagido Japan
14. Cardiovascular Center; Sapporo Teishinkai Hospital; Sapporo Japan
15. Emergency and Critical Care Center; Hokkaido University Hospital; Sapporo Japan
16. Department of Acute Medicine; Graduate School of Medicine; The University of Tokyo; Tokyo Japan
17. Department of Cardiovascular Medicine; Kyushu University Hospital; Fukuoka Japan
18. Advanced Critical Care and Emergency Center; Yokohama City University Medical Center; Yokohama Japan
19. Department of Emergency Medicine and Critical Care Medicine; Miyazaki Prefectural Nobeoka Hospital; Nobeoka Japan
20. Department of Traumatology and Acute Critical Medicine; Osaka University Graduate School of Medicine; Suita Japan