1. Section of Anesthesiology and Clinical Physiology, Tokyo Medical and Dental University, Tokyo, Japan,
2. Center for Public Health Informatics, National Institute of Public Health, Saitama, Japan,
3. Division of Dental Care, National Medical and Educational Consulting Center, National Welfare Foundation for Disabled Children, Tokyo, Japan,
4. Department of Pediatric Dentistry, Tokyo Medical and Dental University, Tokyo, Japan,
5. Pediatric Oral Health Care Science, Tokyo Medical and Dental University, Tokyo, Japan,
6. Geriatric Oral Health Care Science, Tokyo Medical and Dental University, Tokyo, Japan,
7. Tokyo Metropolitan Tobu Medical Center for Persons with Developmental/Multiple Disabilities, Tokyo, Japan