1. Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
2. Department of Internal Medicine, Armed Forces Capital Hospital, Seongnam, Republic of Korea
3. Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
4. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
5. Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
6. Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
7. Kidney Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
8. Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea