1 Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
2 Rehabilitation Medical Research Center, Korea Workers' Compensation and Welfare Service Incheon Hospital, Incheon, Republic of Korea.
3 Department of Internal Medicine, Ewha Womans University Medical Center, Seoul, Republic of Korea.
4 Medical Research Collaborating Center, Seoul National University Hospital, Seoul, Republic of Korea.
5 Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea.
6 Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea.
7 Department of Internal Medicine, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
8 Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
9 Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
10 Division of Nephrology, Department of Internal Medicine, Gachon University of Gil Medical Center, Gachon University School of Medicine, Incheon, Korea.
11 Department of Internal Medicine, Kangbuk Samsung Hospital, College of Medicine, Sungkyunkwan University, Seoul, Korea.
12 Department of Internal Medicine, Eulji Medical Center, Eulji University, Seoul, Korea.
13 Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea. [email protected].
14 Department of Internal Medicine, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea. [email protected].