1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan
2. School of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
3. Department of Computer Science & Information Engineering, National Taiwan University, Taipei 10617, Taiwan
4. Institute of Biomedical Sciences, National Chung Hsing University, Taichung 40227, Taiwan
5. Department of Nursing, Taichung Veterans General Hospital, Taichung 40705, Taiwan
6. School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan