1. Department of Rheumatology and Immunology; The Third Affiliated Hospital of Sun Yat-sen University; Guangzhou; China
2. Department of Rheumatology and Immunology, The First People's Hospital of Changzhou; The Third Affiliated Hospital of Soochow University; Soochow; China
3. Department of Immunology and Rheumatology, Tongji Hospital, Tongji Medical College; Huazhong University of Science and Technology; Wuhan; China
4. Department of Rheumatology and Immunology; Beijing Jishuitan Hospital; Beijing; China
5. Department of Rheumatology; Hainan Provincial People's Hospital; Haikou; China
6. Department of Urology and Rheumatology; The First Affiliated Hospital of Zhengzhou University; Zhengzhou; China
7. Department of Rheumatology; Fuzhou General Hospital of Nanjing Military Command; Fuzhou; China
8. Department of Immunology and Rheumatology, Union Hospital, Tongji Medical College; Huazhong University of Science and Technology; Wuhan; China