1. Department of Nephrology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
2. Department of Internal medicine, Yale University School of Medicine, New Haven, CT, USA
3. Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
4. National University of Singapore, Singapore
5. Xi'an Jiaotong University Health Science Center
6. Department of Nephrology, Xi'an No.3 Hospital, Xi'an, Shaanxi Province, China