1. Department of Hygiene and Public Health, Teikyo University School of Medicine , Tokyo 173-8605 , Japan
2. Open Innovation Center, National Cerebral and Cardiovascular Center , Suita 564-8565 , Japan
3. Department of Clinical Nursing, Shiga University of Medical Science , Otsu 520-2192 , Japan
4. Division of Public Health, Hygiene and Epidemiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University , Sendai 983-8536 , Japan
5. Division of Health Sciences, Osaka University Graduate School of Medicine , Suita 565-0871 , Japan
6. Department of Health Checkup, Saku Central Hospital , Saku 384-0301 , Japan