1. Center for Epidemiologic Research in Asia, Shiga University of Medical Science
2. Department of Public Health, Shiga University of Medical Science
3. Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine
4. Department of Preventive Medicine and Public Health, Faculty of Medicine, Fukuoka University
5. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh
6. Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science