1. Institute of Physiology, School of Medicine, National Yang-Ming University; Taipei Taiwan
2. Division of Nephrology; Wen-Lin Hemodialysis Unit; Taipei Taiwan
3. Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital; Taipei Taiwan
4. Department of Medical Research; Taipei Veterans General Hospital; Taipei Taiwan
5. Department of Education and Research; Taipei City Hospital; Taipei Taiwan