1. Department of Clinical Laboratory, The University of Tokyo Hospital
2. Department of Cardiovascular Medicine, The University of Tokyo Hospital
3. Department of Cardiology, NTT Medical Center Tokyo
4. Clinical Research Promotion Center, The University of Tokyo Hospital
5. Department of Cardiology, Faculty of Medicine, Kindai University
6. MedStar Health Research Institute
7. Department of Laboratory and Transfusion Medicine, Hospital of University of Occupational and Environmental Health, School of Medicine
8. University of Chicago
9. Department of Cardiology, International University of Health and Welfare, Mita Hospital