1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Hospital Department of Health, Executive Yuan, Taichung, Taiwan, Republic of China
2. Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
3. Department of Family Medicine, Taoyuan General Hospital, Department of Health, Executive Yuan, Taoyuan, Taiwan, Republic of China
4. Institute of Biostatistics, China Medical University, Taichung, Taiwan, Republic of China
5. School of Medicine, Chung Shan Medical University, Taichung, Taiwan, Republic of China
6. School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
7. Institute of Medical Technology, National Chung-Hsing University, Taichung, Taiwan, Republic of China