[1] Univ Copenhagen, Rigshosp Glostrup, Ctr Rheumatol & Spine Dis, Glostrup, Denmark
[2] Univ Copenhagen, Rigshosp Glostrup, Ctr Rheumatol & Spine Dis, Copenhagen Ctr Arthrit Res COPECARE, Glostrup, Denmark
[3] Univ Copenhagen, Rigshosp, Dept Diagnost, Glostrup, Denmark
[4] Univ Copenhagen, Glostrup Hosp, Glostrup, Denmark
[5] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark
[6] Univ Copenhagen, Rigshosp Glostrup, Ctr Rheumatol & Spine Dis, Glostrup Hosp,Copenhagen Ctr Arthrit Res COPECARE, Glostrup, Denmark
[7] Hosp Severo Ochoa, Madrid, Spain