1. Division of Endocrinology and Metabolism, Department of Internal Medicine; Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine; Seoul Republic of Korea
2. Division of Endocrinology, Department of Internal Medicine; Korea University College of Medicine; Seoul Republic of Korea
3. Division of Biostatistics, Department of R&D Management; Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine; Seoul Republic of Korea
4. Division of Cardiology, Department of Internal Medicine; Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine; Seoul Republic of Korea