[1] Univ Copenhagen, Copenhagen Ctr Arthrit Res, Rigshosp, Ctr Rheumatol & Spine Dis,Rheumatol, Copenhagen, Denmark
[2] Univ Alberta, Dept Med, Edmonton, AB, Canada
[3] Copenhagen Univ Hosp, Bispebjerg & Frederiksberg Hosp, Rheumat Dis & Autoimmun, Copenhagen, Denmark
[4] Univ Alberta, Dept Radiol & Diagnost Imaging, Edmonton, AB, Canada
[5] Integral Rheumatol & Immunol Specialists, Rheumatol & Immunol, Plantation, FL USA
[6] Univ Florida, Rheumatol, Gainesville, FL USA
[7] Image Anal Grp, R&D, Philadelphia, PA USA
[8] Amgen Inc, Med Affairs, Thousand Oaks, CA USA
[9] Amgen Inc, Stat, Thousand Oaks, CA USA
[10] Providence St Joseph Hlth, Swedish Med Ctr, Seattle, WA USA
[11] Univ Washington, Med, Sch Med, Seattle, WA USA