1. Division of Cardiology, Yokohama City University Medical Center
2. Department of Orthopedic Surgery, Yokohama City University Medical Center
3. Department of Biostatistics and Epidemiology, Yokohama City University Graduate School of Medicine and University Medical Center
4. Jinnouchi Hospital
5. Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University
6. Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine