1. Department of Endocrinology and Metabolism, National Cerebral and Cardiovascular Center Hospital
2. Department of Cardiology, Osaka Medical and Pharmaceutical University
3. Department of Clinical Laboratory Technology, Faculty of Medical Science, Juntendo University
4. Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine
5. Department of Central Laboratory, Osaka Medical and Pharmaceutical University Hospital
6. Cardiovascular Center, Osaka Medical and Pharmaceutical University