1. Department of Pathology, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.
2. Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.
3. Department of Thoracic and Cardiovascular Surgery, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.