Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Department of Rheumatology, Capital Medical University, Harvard University - Brigham and Women’s Hospital, Chinese Center for Disease Control and Prevention (China CDC) - National Center for Chronic and Noncommunicable Disease Control and Prevention, Nanchang University - Second Affiliated Hospital, Kunming Medical University, Inner Mongolia Medical University, Central South University, Baotou Medical College, Nanchang University, Anhui Medical University, Central South University, Third Military Medical University Daping Hospital, Ningxia Medical University, Kunming Medical University - First Affiliated Hospital, The People’s Hospital of Xin Jiang Uygur Autonomous Region - Department of Rheumatology and Immunology, Government of the People's Republic of China - Department of Clinical Immunology, Zhejiang University - Department of Rheumatology, Guyuan Municipal People's Hospital, Southern Medical University, Central South University, Mudanjiang Medical University, The Fifth People's Hospital of Datong, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Department of Rheumatology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Peking Union Medical College Hospital, Harvard University - Brigham and Women’s Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Department of Rheumatology and Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Department of Rheumatology