1 Department of Rheumatology and Immunology, Shantou Central Hospital, Shantou, China.
2 Department of Hematology, Shantou Central Hospital, Shantou, China.
3 Department of Clinical Laboratory, Shantou Central Hospital, Shantou, China.
4 Department of Radiology, Shantou Central Hospital, Shantou, China.
5 Unit of Immunology, Rheumatology, Allergy and Rare diseases (UnIRAR), IRCCS San Raffaele Hospital, Milan, Italy; Vita Salute San Raffaele University, Milan, Italy.
6 Division of Rheumatology, Department of Medicine, University of California at Los Angeles, LA, USA; University of Washington, Seattle, WA, USA; Division of Rheumatology, Department of Experimental and Clinical Medicine, Careggi University Hospital, University of Florence, Florence, Italy.
7 Department of Rheumatology and Immunology, Shantou Central Hospital, Shantou, China. Electronic address: stzxyywyk@126.com.