1. School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
2. Center of Clinical Epidemiology and Evidence Based Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
3. Department of Nephrology, Linfen Central Hospital, Shanxi, China
4. Clinical Laboratory, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi, China
5. Department of Nephrology, Lvliang People’s Hospital, Lvliang, Shanxi, China
6. Department of Nephrology, Linfen People’s Hospital, Linfen, Shanxi, China
7. Department of Nephrology, Yuncheng Central Hospital, Yuncheng, Shanxi, China
8. Department of Nephrology, The Second People’s Hospital of Jinzhong, Jinzhong, Shanxi, China
9. Department of Nephrology, Fenyang Hospital of Shanxi Province, Fenyang, Shanxi, China
10. Department of Nephrology, Changzhi Hospital of Traditional Chinese Medicine, Changzhi, Shanxi, China
11. Chinese Preventive Medicine Association, Beijing, China