Department of Internal Medicine;
Kaohsiung Municipal Ta-Tung Hospital;
Department of Medicine;
Faculty of Medicine;
College of Medicine;
Kaohsiung Medical University;
Division of Gastroenterology;
Department of Internal Medicine;
Kaohsiung Medical University Hospital;
Department of Medicine;
Veterans Affairs Medical Center and Baylor College of Medicine;
Division of Internal Medicine;
Kaohsiung Municipal Hsiao-Kang Hospital;
Kaohsiung Medical University;