1. Department of Medicine, Eulji University Hospital, Eulji University College of Medicine, Daejeon, Korea.
2. Department of Surgery, Eulji University Hospital, Eulji University College of Medicine, Daejeon, Korea.
3. Department of Radiology, Eulji University Hospital, Eulji University College of Medicine, Daejeon, Korea.
4. Department of Pathology, Eulji University Hospital, Eulji University College of Medicine, Daejeon, Korea.