1. Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong, China
2. Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN
3. Vanderbilt Center for Kidney Disease, Vanderbilt University School of Medicine, Nashville, TN
4. Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
5. Department of Veterans Affairs, Nashville, TN