1. Divisions of Nephrology, Department of Medicine, Taipei Veterans' General Hospital, Taipei, Taiwan.
2. School of Medicine, National Yang Ming University, Taipei, Taiwan.
3. Divisions of Endocrinology & Metabolism, Department of Medicine, Taipei Veterans' General Hospital, Taipei, Taiwan.
4. Institute of Health and Welfare Policy, National Yang Ming University, Taipei, Taiwan.
5. Hemodialysis Center, Hsin-Jen Hospital, Taipei, Taiwan.
6. Division of Nephrology, Department of Medicine, Wei-Gong Memorial Hospital, Miaoli County, Taiwan.
7. Division of Nephrology, Department of Medicine, Min-Sheng Hospital, Taoyuan, Taiwan.
8. Department of Nephrology, Central Clinic and Hospital, Taipei, Taiwan.
9. Department of Medicine, Tung-Jen Hospital, Xindian, Taiwan.
10. Hemodialysis Center, Tung Cheng Clinic, Taipei, Taiwan.
11. Hemodialysis Center, Shin Loong Clinic, Panchiao, Taiwan.
12. Hemodialysis Center, Jen Mei Clinic, Luzhou, Taiwan.
13. Department of Medicine, Da An Hospital, Chu-Pei, Taiwan.
14. Hemodialysis Center, Yuen Cha Clinic, Tucheng, Taiwan.
15. Hemodialysis Center, Da Chien Medical Health System, Miaoli, Taiwan.
16. Hemodialysis Center, Hua-Rong Clinic, Taipei, Taiwan.
17. Hemodialysis Center, Da Chien General Hospital, Miaoli, Taiwan.