[1] Vrije Univ Amsterdam Med Ctr, Dept Epidemiol & Biostat, NL-1007 MB Amsterdam, Netherlands
[2] Univ Bristol, Acad Rheumatol Unit, Bristol Royal Infirm, Bristol, Avon, England
[3] Univ Ottawa, Dept Epidemiol & Community Med, Ottawa, ON, Canada
[4] Univ Toronto, Dept Occupat Sci & Occupat Therapy, Toronto, ON, Canada
[5] Univ Paris 06, Dept Rheumatol, GRC UMPC EEMOIS 08, Paris, France
[6] Hop La Pitie Salpetriere, AP HP, Paris, France
[7] Univ Versailles St Quentin Yvelines, Dept Rheumatol, Ambroise Pare Hosp, Boulogne, France
[8] Univ Leeds, NIHR Leeds Musculoskeletal Biomed Res Unit, Leeds, W Yorkshire, England
[9] Johns Hopkins Univ, Div Rheumatol, Baltimore, MD 21224 USA
[10] Univ Melbourne, Sch Populat & Global Hlth, Melbourne, Vic, Australia
[11] Univ Amsterdam, Acad Med Ctr, Dept Clin Immunol & Rheumatol, NL-1105 AZ Amsterdam, Netherlands
[12] Univ Sydney, Kolling Inst Med Res, Inst Bone & Joint Res, Sydney, NSW 2006, Australia
[13] Royal N Shore Hosp, Dept Rheumatol, St Leonards, NSW 2065, Australia
[14] SDG LLC, Cambridge, MA 02138 USA
[15] Univ Alabama Birmingham, Div Rheumatol, Birmingham, AL 35294 USA
[16] Vet Affairs Med Ctr, Birmingham, AL 35294 USA
[17] Stanford Univ, School Med, Div Immunol Rheumatol, Palo Alto, CA 94028 USA
[18] Univ Ottawa, Dept Med, Ottawa, ON, Canada