Department of Internal Medicine;
CHA Bundang Medical Center;
CHA University;
Institute of Gastroenterology;
CHA Bundang Medical Center;
CHA University;
Department of Biomedical Science;
College of Life Science;
CHA University;
Institute for Clinical Research;
CHA Bundang Medical Center;
CHA University;
Department of Internal Medicine;
CHA Gangnam Medical Center;
CHA University;