1. Departments of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Japan
2. Department of Cardiology, Toyama Prefectural Central Hospital, Japan
3. Department of Cardiology, Institute of Medicine, University of Tsukuba, Japan
4. Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Japan
5. Department of Pathology, Tohoku University Hospital, Japan
6. Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Japan
7. Department of Clinical Oncology, Tohoku University Graduate School of Medicine, Japan
8. Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, Japan