1. Department of Anesthesiology and Pain Relief Center The University of Tokyo Hospital Tokyo Japan
2. Department of Pain Medicine Fukushima Medical University School of Medicine Fukushima Japan
3. Department of Pediatric Dentistry, School of Life Dentistry at Tokyo Nippon Dental University Tokyo Japan
4. Department of Dental Anesthesiology Tokyo Dental College Tokyo Japan
5. Nursing Department The University of Tokyo Hospital Tokyo Japan
6. Division of Special Needs Dentistry and Orofacial Pain Tokyo Dental College Tokyo Japan
7. Department of Psychosomatic Dentistry, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
8. Department of Psychiatry, Aizu Medical Center Fukushima Medical University Aizuwakamatsu Japan