1 Department of Internal Medicine, Konkuk University Chungju Hospital, Chungju, Korea.
2 Department of Internal Medicine, Konkuk University Chungju Hospital, Chungju, Korea;Department of Internal Medicine, Konkuk University School of Medicine, Chungju, Korea.
3 Department of Internal Medicine, Konkuk University School of Medicine, Chungju, Korea.
4 Department of Surgery, Konkuk University Chungju Hospital, Chungju, Korea.
5 Department of Pathology, Konkuk University Hospital, Seoul, Korea.