1. Department of Internal Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
2. Department of Radiology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
3. Department of Surgery, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
4. Department of Pathology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.