1. Division of Cardiology Tenri Hospital Tenri Japan
2. Japanese Red Cross Otsu Hospital Otsu Japan
3. Hyogo Prefectural Amagasaki General Medical Center Amagasaki Japan
4. Hidaka Hospital Gobo Japan
5. Kitano Hospital Osaka Japan
6. Japanese Red Cross Wakayama Medical Center Wakayama Japan
7. National Cerebral and Cardiovascular Center Suita Japan
8. Shiga University of Medical Science Otsu Japan