[1] Iuliu Hatieganu Univ Med & Pharm, Internal Med Dept 2, Cluj Napoca, Romania
[2] La Princesa Univ Hosp, Princesa Hlth Res Inst, Rheumatol Dept, Madrid, Spain
[3] Sapienza Univ Rome, Dept Radiol Oncol & Anatomopathol Sci, Rome, Italy
[4] Univ Oslo, Diakonhjemmet Hosp, Dept Rheumatol, Oslo, Norway
[5] Univ Oslo, Fac Med, Oslo, Norway
[6] Asklepios Clin, Clin Rheumatol & Clin Immunol, Bad Abbach, Germany
[7] Med Univ Innsbruck, Dept Radiol, Sect Head Rheumatol & Sports Imaging, Innsbruck, Austria
[8] Univ Genoa, Dept Hlth Sci DISSAL, Genoa, Italy
[9] IRCCS Policlin San Martino, Radiol, Milan, Italy
[10] Rigshospitalet, Copenhagen Ctr Arthrit Res, Ctr Rheumatol & Spine Dis, Copenhagen, Denmark
[11] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark
[12] Hosp Univ Puerta Hierro Majadahonda, Dermatol Dept, Madrid, Spain
[13] Univ Barcelona, Int Univ Catalunya, Inst Poal Reumatol Barcelona, EULAR Working Grp Anat Image, Barcelona, Spain
[14] Hosp Univ Fdn Alcorcon, Dept Musculoskeletal Radiol, Madrid, Spain
[15] Hosp Univ Severo Ochoa, Rheumatol Dept, Transit Care Clin, Madrid, Spain
[16] Fdn Policlin Univ Agostino Gemelli, Ist Reumatol Univ Cattolica Sacro Cuore, UOC Reumatol, IRCCS, Rome, Italy
[17] Clin Pakea Mutualia, Orthped Dept, San Sebastian, Spain
[18] Cork Univ Hosp, Dept Anaesthesiol & Intens Care Med, Cork, Ireland
[19] Univ Coll Cork, Cork, Ireland
[20] Univ Hosp Heidelberg, Dept Anaesthesiol, Div Pain Med, Heidelberg, Germany
[21] Iuliu Hatieganu Univ Med & Pharm, Radiol Dept, Cluj Napoca, Romania
[22] Univ Genoa, UOC Clin Pediat & Reumatol, IRCCS Ist Giannina Gaslini, Dept Neurosci Rehabil Ophthalmol Genet & Mat, Genoa, Italy
[23] Med Univ Vienna, Div Rheumatol, Vienna, Austria
[24] Hosp Univ Fdn Jimenez Diaz, Dept Dermatol, Madrid, Spain
[25] Rehabil Clin Hosp Cluj Napoca, Rehabil Dept 2, Rheumatol Div, Cluj Napoca, Romania
[26] Univ Glasgow, Inst Infect Immun & Inflammat, Coll Med Vet & Life Sci, Glasgow, Lanark, Scotland
[27] Hacettepe Univ, Dept Phys & Rehabil Med, Med Sch, Ankara, Turkey
[28] Private Radiol Inst, Ultrasound Unit, Athens, Greece
[29] Univ Barcelona, Dept Anaesthesiol, Dept Human Anat, Hosp Clin,Fac Med, Barcelona, Spain
[30] IRCCS Ist Ortoped Galeazzi, Milan, Italy
[31] Univ Milan, Dept Biomed Sci Hlth, Milan, Italy
[32] Univ Libre Bruxelles, Reine Fabiola Childrens Univ Hosp, Paediat Imaging Dept, Brussels, Belgium
[33] Natl Inst Geriatr Rheumatol & Rehabil, Dept Radiol, Warsaw, Poland
[34] Praxis, Orthped & Trauma Surg, Hamburg, Germany
[35] Med Univ Plovdiv, Dept Internal Dis Propaedeut & Clin Rheumatol, Plovdiv, Bulgaria
[36] Univ Rey Juan Carlos, Dept Rheumatol, Hosp Univ Mostoles, Madrid, Spain
[37] Sf Maria Hosp, Rheumatol Dept, Bucharest, Romania
[38] Hosp Univ Fdn Jimenez Diaz IIS Fdn, Dept Rheumatol Bone & Joint Res Unit, Madrid, Spain
[39] Univ Autonoma Madrid, Madrid, Spain