1. Division of Surgical Oncology, Department of Surgery, Gyeongsang National University Hospital, Jinju, Korea
2. Department of Laboratory Medicine, Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
3. Department of Laboratory Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
4. Department of Pathology, Gyeongsang National University Hospital, Jinju, Korea