1. Division of Endocrinology and Metabolism; Department of Medicine; Thyroid Center; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
2. Department of Social and Preventive Medicine; Sungkyunkwan University School of Medicine; Seoul Korea
3. Department of Pathology; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
4. BioSewoom Inc.; Seoul Korea
5. Department of Laboratory Medicine and Genetics; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea