1. Department of Pathology, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
2. Department of General Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
3. Department of Clinical Pharmacology, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.