1. Department of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
2. Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
3. Department of General Medicine, Nagasaki University Hospital, Nagasaki, Japan
4. Department of Island and Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan