1. Encore clinic, Kaohsiung, Taiwan, ROC
2. Graduate Institute of Biomedical Information, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
3. School of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
4. Division of Nephrology, Department of Internal Medicine, Chi Mei Medical center, Tainan, Taiwan, ROC
5. Division of Nephrology, Department of Internal Medicine, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan, ROC
6. Chinru clinic, Taipei, Taiwan, ROC
7. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, ROC