1. Department of Emergency Medicine; Saiseikai Utsunomiya Hospital; Tochigi Japan
2. Department of Emergency and Critical Care Medicine; Keio University School of Medicine; Tokyo Japan
3. Department of Pathology; Saiseikai Utsunomiya Hospital; Tochigi Japan
4. Department of Pathology; Keio University School of Medicine; Tokyo Japan
5. Department of Radiology; Saiseikai Utsunomiya Hospital; Tochigi Japan
6. Department of Pathology; Saitama Medical University; Saitama Japan
7. Department of General Internal Medicine; Saiseikai Utsunomiya Hospital; Tochigi Japan
8. Department of Critical Care Medicine; Saiseikai Utsunomiya Hospital; Tochigi Japan
9. Department of Surgery; Saiseikai Utsunomiya Hospital; Tochigi Japan