1. Department of Internal Medicine, Min-Sheng General Hospital, Taoyuan City, Taiwan
2. Division of Nephrology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
3. Graduate Institute of Toxicology, National Taiwan University College of Medicine, Taipei, Taiwan
4. Graduate Institute of Medical Education and Bioethics, National Taiwan University College of Medicine, Taipei, Taiwan