1 Department of Medicine, E-DA Hospital, Kaohsiung, Taiwan.
2 Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung City, Taiwan.
3 Department of Rheumatology & Immunology, Chung Shan Medical University Hospital; Institute of Medicine, Chung Shan Medical University; Graduate Institute of Integrated Medicine. China Medical University, Taichung, Taiwan.