1. The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China.
2. Guangdong Hong-Kong Joint Laboratory on Immunological and Genetic Kidney Diseases, Guangzhou, People's Republic of China.
3. Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, People's Republic of China.
4. Department of Nephrology, Guangdong Medical University, Zhanjiang, People's Republic of China.
5. Department of Pathology, Nanfang Hospital; Southern Medical University, Guangzhou, People's Republic of China.
6. The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, People's Republic of China.