1. The First Clinical School of Medicine, Southern Medical University, Guangzhou 510091, China
2. Department of Pediatric Nephrology and Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
3. Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
4. Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
5. Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
6. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China