1. Department of Emergency and Critical Care Medical Center Dokkyo Medical University Tochigi Japan
2. Department of Neurology Dokkyo Medical University Tochigi Japan
3. Department of Critical Care Medicine Sakai City Medical Center Sakai Japan
4. Department of Emergency and Critical Care Medicine Emergency Medical Center St. Luke’s International Hospital Chuo Japan
5. Department of Emergency and Critical Care Medicine Saitama Medical Center Jichi Medical University Tochigi Japan
6. Department of Emergency Medicine Teikyo University School of Medicine Tokyo Japan
7. Department of Emergency and Critical Care Medicine Juntendo University Urayasu Hospital Urayasu Japan
8. Department of Emergency and Critical Care Medicine Nippon Medical School Tokyo Japan