1 Department of Rheumatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310004, China.
2 Flow Cytomter and Immunology Unit, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310004, China; Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, China. Electronic address: [email protected].