1. Department of Epidemiology and Biostatistics School of Public Health Anhui Medical University Hefei China
2. Inflammation and Immune Mediated Diseases Laboratory of Anhui Province Hefei China
3. School of Public Health Faculty of Medicine University of Queensland Brisbane Qld Australia
4. Teaching Center of Preventive Medicine School of Public Health Anhui Medical University Hefei China
5. Department of Rheumatology The First Affiliated Hospital of University of Science and Technology of China Hefei China
6. Department of Rheumatology and Immunology The First Affiliated Hospital of Anhui Medical University Hefei China