1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan
2. School of Medical, Chung Shan Medical University, Taichung 402, Taiwan
3. Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
4. Department of Nutrition, Chung Shan Medical University, No. 110, Section 1, Jianguo North Road, Taichung 402, Taiwan
5. Department of Health Diet and Industry Management, Chung Shan Medical University, Taichung 402, Taiwan
6. Department of Pathology, Chung Shan Medical University Hospital, Taichung 402, Taiwan
7. Department of Internal Medicine, Chung-Shan Medical University Hospital, No. 110, Section 1, Jianguo North Road, Taichung 402 and Taiwan
8. Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan