1. Department of Social and Environmental Medicine Graduate School of Medicine Osaka University Suita Japan
2. Graduate School of Engineering Science Osaka University Toyonaka Japan
3. Department of Traumatology and Acute Critical Care Osaka University Graduate School of Medicine Suita Japan
4. Rinku General Medical Center Senshu Trauma and Critical Care Center Izumisano Japan
5. Department of Emergency Medicine Osaka Medical and Pharmaceutical University Takatsuki Japan
6. Kyoto University Health Service Kyoto Japan
7. Division of Trauma and Surgical Critical Care Osaka General Medical Center Osaka Japan
8. Emergency Care Center Kindai University Hospital Osaka‐Sayama Japan
9. Otemae Hospital Osaka Japan
10. Baba Memorial Hospital Sakai Japan
11. Department of Traumatology and Critical Care Medicine Osaka City University Graduate School of Medicine Osaka Japan
12. Department of Emergency and Critical Care Medicine Kansai Medical University Hirakata Japan