1. Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Science, University of Tsukuba
2. Departments of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
3. Department of Functional Diagnostic Science, Division of Health Sciences, Osaka University Graduate School of Medicine
4. Medtronic Japan Co, Ltd
5. Division of Cardiology, Gunma Prefectural Cardiovascular Center
6. Department of Cardiology, Tokyo Women's Medical University
7. Department of Cardiology, Kokura Memorial Hospital
8. Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine