1. Division of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center
2. Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
3. Division of Cardiology, Fukuoka Tokushukai Hospital
4. Department of Cardiology, Yokohama City University
5. Division of Cardiology, Japan Red Cross Kumamoto Hospital
6. Division of Cardiology, Amakusa Medical Center
7. Department of Clinical Trial Management, Graduate School, International University of Health and Welfare