1. Graduate School of Medical Sciences Kumamoto University Kumamoto City Kumamoto Japan
2. Department of Emergency and Intensive Care Medicine Oita City Medical Association's Almeida Memorial Hospital Oita City Oita Japan
3. Department of Emergency Medicine Oita Prefecture Saiseikai Hita Hospital Hita City Oita Japan
4. Disaster Medical Education and Research Center Kumamoto University Hospital Kumamoto City Kumamoto Japan