1 Division of Nephrology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
2 Division of Nephrology, Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan.
3 Graduate Institute of Toxicology, National Taiwan University College of Medicine, Taipei, Taiwan.
4 Center of Faculty Development, National Taiwan University College of Medicine, Taipei, Taiwan.
5 Division of Nephrology, Department of Internal Medicine, Min-Sheng General Hospital, Taoyuan City, Taiwan.
6 Division of Nephrology, Department of Internal Medicine, Taipei Medical University-Shuang-Ho Hospital, Ministry of Health and Welfare, New Taipei City, Taiwan.