1. Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Osaka Japan
2. Division of Cardiology Department of Internal Medicine The Jikei University School of Medicine Tokyo Japan
3. Cardiovascular Division National Hospital Organization Osaka National Hospital Osaka Japan
4. Department of Preventive Medicine and Epidemiology National Cerebral and Cardiovascular Center Suita Japan
5. Department of Public Health and Health Policy, Graduate School of Medicine The University of Tokyo Tokyo Japan
6. Department of Medical and Health Information Management National Cerebral and Cardiovascular Center Suita Japan
7. Department of Cardiovascular Medicine Nippon Medical School Bunkyo‐ku Japan
8. Department of Cardiology Keio University School of Medicine Tokyo Japan
9. Division of Cardiology Gunma Prefectural Cardiovascular Center Maebashi Japan