1 Renal Division, Peking University First Hospital, Beijing, China.
2 Peking University Institute of Nephrology, Peking University Health Science Center, Beijing, China.
3 Key Laboratory of Kidney Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China.
4 Research Units of Diagnosis and Treatment of Immune-mediate Kidney Disease, Chinese Academy of Medical Sciences, Beijing, China.