1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
2. Department of Biostatistics, Korea University College of Medicine, Seoul, Republic of Korea
3. Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
4. BK21 FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Republic of Korea