1. Department of Cardiology, Medical Corporation Koutokukai Mitajiri Hospital
2. Department of Cardiovascular Physiology and Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University
3. Department of General Medicine, Tamano Division, Dentistry and Pharmaceutical Sciences, Graduate School of Medicine, Okayama University
4. Department of Cardiology, Faculty of Medicine, Tottori University
5. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
6. Department of Cardiology, Kawasaki Medical School
7. Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine
8. Division of Cardiology, Faculty of Medicine, Shimane University
9. Department of Cardiology, Hiroshima University