1. Division of Aging and Geriatric Dentistry, Department of Rehabilitation Dentistry Tohoku University Graduate School of Dentistry Sendai Japan
2. Japanese Red Cross Ishinomaki Hospital Ishinomaki Japan
3. Division of Public Health, Hygiene and Epidemiology Faculty of Medicine Tohoku Medical and Pharmaceutical University Sendai Japan
4. Department of Hygiene and Public Health Teikyo University School of Medicine Tokyo Japan
5. Tohoku Institute for Management of Blood Pressure Sendai Japan
6. Department of Medical Information Technology Center Tohoku University Hospital Sendai Japan
7. Department of Preventive Medicine and Epidemiology Tohoku Medical Megabank Organization Tohoku University Sendai Japan
8. Research Institute of Living and Environmental Sciences Miyagi Gakuin Women’s University Sendai Japan