1. Institute of Immunology, People's Liberation Army, Third Military Medical University, Chongqing, China;
2. Institute of Genetic Engineering, Southern Medical University, Guangzhou, China;
3. Department of Rheumatology, Southwest Hospital, Third Military Medical University, Chongqing, China;
4. Department of Immunology, Duke University Medical Center, Durham, NC; and
5. Biomedical Analysis Center, Third Military Medical University, Chongqing, China