1. Division of Endocrinology and Metabolism; Department of Internal Medicine; Chung Shan Medical University Hospital; Taichung Taiwan
2. Institute of Medicine; Chung Shan Medical University; Taichung Taiwan
3. Division of Basic Medical Science; Hungkuang University; Taichung Taiwan
4. Department of Biomedical Sciences; Chung Shan Medical University; Taichung Taiwan
5. Department of Medical Research; Chung Shan Medical University Hospital; Taichung Taiwan