1. Behavioral Dentistry; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
2. Department of Dental Hygiene; Faculty of Health Care Science; Chiba Prefectural University of Health Sciences; Chiba Japan
3. Cognitive Neurobiology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
4. Research Team for Promoting Independence of the Elderly; Tokyo Metropolitan Institute of Gerontology; Tokyo Japan
5. Basic Oral Health Science; School of Oral Health Care Sciences; Faculty of Dentistry; Tokyo Medical and Dental University; Tokyo Japan