1. Department of Internal Medicine; Inha University Hospital, Inha University School of Medicine; Incheon South Korea
2. Department of Internal Medicine; Yonsei University College of Medicine; Seoul South Korea
3. Department of Radiology; Inha University Hospital, Inha University School of Medicine; Incheon South Korea
4. Department of Surgery; Inha University Hospital, Inha University School of Medicine; Incheon South Korea