"Education and Experience" Bachelor of Medical College of Catholic University Residency training at St. Mary's Hospital Gangnam in Internal Medicine Doctoral studies at the Medical College Catholic University majoring in Internal Diseases Catholic University Medical College, Department of Internal Medicine, Professor Bundang Jesaeng Hospital, Hepatology Center, Director Member of the Korean Society of Hepatologists Member of the Korean Society of Gastroenterologists Member of the Korean Society of Endoscopists