1. Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China
2. Department of Rheumatology and Immunology, The People’s Hospital of Bozhou, Bozhou, Anhui, China
3. Westmead Institute for Medical Research, University of Sydney, Westmead 2145 NSW, Australia
4. Pharmacoepidemiology and Medication Safety Research Cluster, UCL School of Pharmacy, London WC1N 1AX, UK