1. Department of Surgery, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea
2. Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
3. Department of Radiology, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea
4. Research Institute of Clinical Medicine, Chonbuk National University, Jeonju, Korea