1. Division of Cardiology, University of Chicago Medical Center
2. Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University
3. Department of Cardiology, Saitama Medical University International Medical Center
4. Department of Cardiology, Tokyo Women’s Medical University
5. Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine
6. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
7. Division of Cardiology, Graduate School of Medicine, the University of Tokyo
8. Second Department of Internal Medicine, University of Toyama