1. Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
2. Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
3. National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
4. Renal Division, Department of Medicine, Peking University First Hospital, Beijing 100034, China
5. Institute of Nephrology, Peking University, Beijing 100034, China
6. Key Laboratory of Renal Disease, Ministry of Health of China, Beijing 100034, China
7. Research Units of Diagnosis and Treatment of Immune-mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing 100034, China