1. Division of Cardiology, Department of Medicine, Keio University School of Medicine
2. Department of Cardiology, Tokyo Medical University Ibaraki Medical Center
3. Department of Cardiology, Mito Saiseikai General Hospital
4. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
5. Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine
6. Department of Cardiology, Tokyo Saiseikai Central Hospital
7. Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
8. Department of Cardiology, Tokai University School of Medicine
9. Department of Cardiology, Kyoto University Graduate School of Medicine
10. Division of Palliative Nursing, Health Sciences, Tohoku University Graduate School of Medicine
11. Department of Cardiology, St. Luke’s International Hospital