1. Department of Cardiovascular Medicine and Nephrology Dokkyo Medical University Nikko Medical Center Nikko Japan
2. Yuai Clinic Saitama Japan
3. Department of First Integrated Medicine 1, Saitama Medical Center Jichi Medical University Saitama Japan
4. Department of Cardiovascular Surgery Sakakibara Heart Institute Tokyo Japan
5. Department of Cardiovascular Medicine Dokkyo Medical University Mibu Japan