1. Department of Community Emergency Medicine, Ehime University Graduate School of Medicine, Japan
2. Department of Radiology, Yawatahama City General Hospital, Japan
3. Department of Clinical Pathology, Yawatahama City General Hospital, Japan
4. Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Japan
5. Department of Cardiology, Yawatahama City General Hospital, Japan