1. Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical Science
2. Research Institute, National Center for Geriatrics and Gerontology
3. Department of Cardiology, Hiroshima City Asa Hospital
4. Department of Surgery, Hiroshima University Graduate School of Biomedical Science
5. Department of Medicine and Molecular Science, Hiroshima University Graduate School of Biomedical Science