1. Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry
2. Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry
3. Shitennoji-Yawaragien Welfare Facility for the Disabled
4. Slowlife Yao Long-term Care Health Facility
5. Clover-no-Oka Long-term Care Health Facility
6. Suzunone Long-term Care Health Facility
7. Ikurien-Naka Special Elderly Nursing Home
8. Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo