T-M Chen1, C-C Lin2,3. 1. Division of Hepato-Gastroenterology, Department of Internal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan. 2. Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan. cshy333@csh.org.tw. 3. Division of Gastroenterology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan. cshy333@csh.org.tw.