1. Department of Preventive Medicine, Postgraduate School of Medical Sciences, Kyushu University
2. Department of Cardiology, Fukuoka Tokushukai Hospital
3. Cardiovascular Disease Center, National Kyushu Medical Center Hospital
4. Division of Internal Medicine, Saiseikai Fukuoka General Hospital
5. The Second Department of Internal Medicine, Fukuoka University School of Medicine
6. Department of Cardiovascular Medicine, Postgraduate School of Medical Sciences, Kyushu University