1. Emergency and Critical Care Medicine, Tokushima University Hospital, 2-50-1, Kuramoto, Tokushima, 770-8503, Japan
2. Department of Respiratory Medicine and Rheumatology, Tokushima University Hospital, 2-50-1, Kuramoto, Tokushima, 770-8503, Japan
3. Emergency and Critical Care Medicine, Tokushima University Graduate School of Biomedical Sciences, 3-18-15, Kuramoto, Tokushima, 770-8503, Japan
4. Emergency and Disaster Medicine, Tokushima University Hospital, 2-50-1, Kuramoto, Tokushima, 770-8503, Japan
5. Department of Respiratory Medicine and Rheumatology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15, Kuramoto, Tokushima, 770-8503, Japan