1. Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
2. Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
3. Translational Medicine Research Center, North Sichuan Medical College, Nanchong, Sichuan 637007, P.R. China
4. Department of Rheumatology and Immunology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610000, P.R. China