1 Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
2 Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
3 China Department of Rheumatology and Immunology, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, China.