1 Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
2 The Second Clinical Medical School, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
3 Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China; Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia. Electronic address: Changhai.Ding@utas.edu.au.
4 Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China. Electronic address: zhaohua.zhu@utas.edu.au.