1 Division of Nephrology, Department of Internal Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea.
2 Division of Nephrology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea.
3 Division of Nephrology, Department of Internal Medicine, Ewha Womans University Seoul Hospital, Ewha Womans College of Medicine, Seoul, Republic of Korea.
4 Division of Pediatric Nephrology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea.
5 Division of Nephrology, Department of Internal Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea.
6 Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea.
7 Division of Nephrology, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea.
8 Asan Jin Internal Medicine Clinic, Seoul, Republic of Korea.
9 Division of Nephrology, Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
10 Division of Nephrology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
11 Division of Nephrology, Department of Internal Medicine, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea.
12 Truewords Dialysis Clinic, Incheon, Republic of Korea.
13 Division for Healthcare Technology Assessment Research, National Evidence-Based Healthcare Collaborating Agency, Seoul, Republic of Korea.
14 Department of Biostatistics, Korea University College of Medicine, Seoul, Republic of Korea.
15 Division of Nephrology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.