1. Department of Food and Nutrition, Taichung Veterans General Hospital, Taichung 407219, Taiwan
2. Biostatistics Group, Department of Medical Research, Taichung Veterans General Hospital, Taichung 407219, Taiwan
3. Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407219, Taiwan
4. Department of Life Science, Tunghai University, Taichung 407224, Taiwan
5. Department of Medicine, National Yang-Ming Chiao Tung University, Taipei 112304, Taiwan
6. Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University School of Medicine, Taichung 40227, Taiwan