1. Sanno Hospital and Sanno Medical Center, International University of Health and Welfare, Tokyo, Japan
2. Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
3. Division of Biostatistics and Clinical Epidemiology, University of Toyama School of Medicine, Toyama, Japan
4. Department of Cardiovascular Medicine, Uji Hospital, Uji, Kyoto, Japan
5. Matsuo Clinic, Osaka, Japan
6. Senri Chuo Hospital, Osaka, Japan
7. Mitsubishi Tanabe Pharma Corporation, Osaka, Japan