1. Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan;
2. Department of Medicine, School of Medicine, National Yang Ming University, Taipei, Taiwan;
3. Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan;
4. Department of Life Science, Tung-Hai University, Taichung, Taiwan;
5. Division of Endocrinology and Metabolism, Department of Medicine, Taichung Veterans General Hospital, Taichung, Taiwan;
6. Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan;
7. School of Medicine, National Defense Medical Center, Taipei, Taiwan