1. Institute of Medicine Chung Shan Medical University Taichung Taiwan
2. Division of Gastroenterology and Hepatology Department of Internal Medicine Taichung Veterans General Hospital Taichung Taiwan
3. Division of Nephrology Department of Internal Medicine Taichung Veterans General Hospital Taichung Taiwan
4. Institute of Biomedical Sciences National Chung Hsing University Taichung Taiwan
5. School of Medicine Chung Shan Medical University Taichung Taiwan
6. Department of Clinical Laboratory Drug Testing Center Chung Shan Medical University Hospital Taichung Taiwan
7. Division of Nephrology Department of Internal Medicine Chung Shan Medical University Hospital Taichung Taiwan