| Authors: |
Fong W; Department of Rheumatology and Immunology, Singapore General Hospital, Singapore gmsfwsw@nus.edu.sg.; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore., Woon TH; Department of Rheumatology and Immunology, Singapore General Hospital, Singapore., Kwan YH; Department of Rheumatology and Immunology, Singapore General Hospital, Singapore.; Program in Health Services and Systems Research, Duke-NUS Graduate Medical School, Singapore., Braun J; Ruhr University Bochum, Bochum, Germany., van der Heijde D; Rheumatology, LUMC, Leiden, The Netherlands., Boonen A; Department of Internal Medicine, Division of Rheumatology, Maastricht University Medical Center, and the Caphri Research Institute Maastricht University, Maastricht, The Netherlands., Kiltz U; Ruhr University Bochum, Bochum, Germany.; Rheumazentrum Ruhrgebiet, Herne, Germany. |