1. Department of Neuropsychiatry, Graduate School of Medicine The University of Tokyo Tokyo Japan
2. TXP Medical Co. Ltd. Tokyo Japan
3. Emergency Life‐Saving Technique Academy of Tokyo Foundation for Ambulance Service Development Tokyo Japan
4. Department of Clinical Epidemiology and Health Economics, School of Public Health The University of Tokyo Tokyo Japan
5. Department of Emergency and Critical Care Medicine Hitachi General Hospital Ibaraki Japan