1. Department of Internal Medicine, Jeonbuk National University Hospital, Jeonju, Korea
2. Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju, Korea
3. Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju, Korea
4. Department of Surgery, Jeonbuk National University Hospital, Jeonju, Korea
5. Department of Pathology, Jeonbuk National University Medical School, Jeonju, Korea