1. Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima, Japan
2. Current affiliation : Otsuka Warehouse Co., Ltd., Japan
3. Graduate School of Humanities and Sustainable System Sciences, Osaka Prefecture University, Osaka, Japan
4. Department of Pain Medicine, Hyogo Medical University Hospital, Hyogo, Japan
5. Department of Hygiene, Public Health and Preventive Medicine, Showa University School of Medicine, Tokyo, Japan
6. Department of Anesthesiology and Intensive Care 2, Kawasaki Medical School, Okayama, Japan