1. Department of Cardiology and Respirology, Gifu University Graduate School of Medicine, Gifu, Japan.
2. Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Gifu, Japan.
3. Advanced Critical Care Center, Gifu University Hospital, Gifu, Japan.
4. Department of Internal Medicine, Fujikake Hospital, Kani, Japan.
5. Department of Infection Control, Gifu University Graduate School of Medicine, Gifu, Japan.
6. Department of Abuse Prevention Emergency Medicine, Gifu University, Gifu, Japan.