1. Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.
2. Department of Surgery, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.
3. Department of Pathology, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea