1. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
2. Department of Immunology, Seoul National University Postgraduate School, Seoul, Korea.
3. Research Institute of Salt and Health, Seoul K-Clinic, Seoul, Korea.
4. Renal Institute, Seoul National University Medical Research Center, Seoul, Korea.
5. Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.