1. Department of Internal Medicine, Sakurajyuji Yatsushiro Rehabilitation Hospital
2. Department of Environmental and Occupational Health, School of Medicine, Toho University
3. Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
4. Department of Biostatistics, School of Medicine, University of Toyama
5. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
6. Department of Cardiovascular Medicine, Faculty of Medicine, Toho University