1. International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
2. Department of Internal Medicine, Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen 241-17, Vietnam
3. School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
4. Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
5. TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 110, Taiwan
6. Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
7. Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan