1. Department of Internal Medicine, Hallym Kidney institute, Hallym University College of Medicine, Seoul, Korea.
2. Dialysis Committee, Korean Society of Nephrology, Seoul, Korea.
3. Department of Medical Law and Ethics, Yonsei University College of Medicine, Seoul, Korea.
4. Ewha Institute for Biomedical Law and Ethics, Ewha Womans University, Seoul, Korea.
5. Seong Nam Kim Internal Medicine Clinic, Seoul, Korea.
6. Samsung Myungin Internal Medicine Clinic, Icheon, Korea.
7. Department of Internal Medicine, Seoul Medical Center, Seoul, Korea.
8. Nephrology Clinic, National Cancer Center, Goyang, Korea.
9. Department of Internal Medicine, National Medical Center, Seoul, Korea.
10. Seung Hwan Son Internal Medicine Clinic, Seoul, Korea.
11. Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.