1. Tissue Bank, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan
2. Department of Anatomic Pathology, Chang Gung Memorial Hospital, Chang Gung University School of Medicine, Tao-Yuan, Taiwan
3. Department of Hepato-Gastroenterology, Liver Research Center, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan
4. Department of Dental Hygiene, College of Health Care, China Medical University, Taichung, Taiwan