| Affiliation: | 1.Global Health Economics and Outcomes Research, Bristol-Myers Squibb,Lawrenceville,USA;2.Department of Medicine, Clinical Epidemiology Unit,Karolinska University Hospital Solna, Rheumatology Unit d2:01, Karolinska University Hospital Solna,Stockholm,Sweden;3.Division of Rheumatology, Department of Medicine, Arthritis Research Centre of Canada,University of British Columbia,Vancouver,Canada;4.Arc Epidemiology Unit, School of Medicine,University of Manchester, Stopford Building,Manchester,UK;5.Medical School,University of Sheffield,Sheffield,UK;6.Department of Internal Medicine, National Data Bank for Rheumatic Diseases,Arthritis Research Foundation and University of Kansas,Wichita,USA;7.Global Biostatistics,Hopewell,USA;8.Center for Clinical Epidemiology, Lady Davis Research Institute,Jewish General Hospital,Montreal,Canada;9.Departments of Medicine and Epidemiology and Preventive Medicine,University of Maryland School of Medicine,Baltimore,USA |
