1. Department of Traumatology and Acute Critical Medicine; Osaka University Graduate School of Medicine; Osaka Japan
2. Kyoto University Health Service; Kyoto Japan
3. Senri Critical Care Medical Center; Saiseikai Senri Hospital; Suita Japan
4. Emergency and Critical Care Medical Center; Osaka City General Hospital; Osaka Japan
5. Osaka Mishima Emergency Critical Care Center; Osaka Japan
6. Critical Care and Trauma Center; Osaka General Medical Center; Osaka Japan
7. Osaka Prefectural Nakakawachi Medical Center of Acute Medicine; Higashi-Osaka Japan
8. Osaka Prefectural Senshu Critical Care Medical Center; Izumi-Sano Japan
9. Emergency and Critical Care Medical Center; Osaka Police Hospital; Osaka Japan
10. Traumatology and Critical Care Medical Center; National Hospital Organization Osaka National Hospital; Osaka Japan
11. Department of Emergency and Critical Care Medicine; Kinki University School of Medicine; Osaka-Sayama Japan
12. Department of Emergency Medicine; Osaka Medical College Hospital; Takatsuki Japan
13. Department of Critical Care and Emergency Medicine; Osaka City University Graduate School of Medicine; Osaka Japan
14. Osaka Prefectural Council of Emergency Care Facilities; Osaka Japan