1. Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University; Taichung Taiwan
2. Division of Hepatology and Gastroenterology, Department of Internal Medicine; Chung Shan Medical University Hospital; Taichung Taiwan
3. Division of Cardiovascular Surgery, Department of Surgery; China Medical University Hospital; Taichung Taiwan
4. Department of Medicine; College of Medicine, Chung Shan Medical University; Taichung Taiwan
5. Medical Laboratory, Department of Medical Science; Chung Shan Medical University Hospital; Taichung Taiwan
6. Sections of Infectious Diseases, Department of Internal Medicine; Chung Shan Medical University Hospital; Taichung Taiwan