1. Trauma and Acute Critical Care Center, Tokyo Medical and Dental University Hospital, Tokyo, Japan
2. Department of General Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan
3. Department of Emergency and Critical Care Medicine, University of Miyazaki Hospital, Miyazaki, Japan
4. Department of Emergency Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan