1. Department of Cardiovascular Internal Medicine, Toho University Medical Center, Ohashi Hospital
2. Department of Cardiovascular Internal Medicine, Higashi Takarazuka Satoh Hospital
3. Department of Cardiovascular Internal Medicine, Tenri Hospital
4. Department of Cardiovascular Medicine, The Cardiovascular Institute
5. Department of Cardiovascular Internal Medicine, Tsuchiya General Hospital
6. Department of Cardiovascular Medicine, Mie Heart Center
7. Biostatistical Research Center
8. Department of Cardiovascular Internal Medicine, Tokai University Hospital
9. Department of Cardiovascular Medicine, Fukuoka Sanno Hospital