1. Department of Biochemistry, Institute for Medical Sciences, Jeonbuk National University Medical School, Jeonju 54907, Korea
2. Department of Surgery, Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
3. Division of Gastroenterology, Department of Internal Medicine, Research Institute of Clinical Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea
4. Department of Anesthesiology and Pain Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea