1. Department of Internal Medicine, Chang Gung Memorial Hospital, Yunlin, Taiwan.
2. Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Yunlin, Taiwan.
3. Liver Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.
4. Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan.
5. Division of Thoracic Medicine, Chang Gung Memorial Hospital, Yunlin, Taiwan.
6. College of Nursing, Chang Gung University of Science and Technology, Putz City, Chiayi County, Taiwan.