1. Department of Nephrology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou , People's Republic of China
2. NHC Key Laboratory of Clinical Nephrology (Sun Yat-Sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou , People's Republic of China
3. Department of Pathology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou , People's Republic of China