[1] Marmara Univ, Dept Rheumatol, Sch Med, Istanbul, Turkey
[2] Cavale Blanche Hosp, Dept Rheumatol, Brest, France
[3] Brest Occidentale Univ, Brest, France
[4] Marmara Univ, Dept Radiol, Sch Med, Istanbul, Turkey
[5] Versailles St Quentin Univ, Hop Ambroise Pare, Versailles, France
[6] Univ Autonoma, Hosp Univ Fdn Jimenez Diaz, Dept Rheumatol, Joint & Bone Res Unit, Madrid, Spain
[7] Univ Med Ctr, Dept Rheumatol, Ljubljana, Slovenia
[8] Univ Freiburg, Fac Med, Dept Rheumatol & Clin Immunol, Med Ctr, Freiburg, Germany
[9] Rigshosp, Ctr Rheumatol & Spine Dis, Copenhagen, Denmark
[10] Inst Nacl Rehabilitac, Dept Rheumatol, Mexico City, DF, Mexico
[11] Univ Western Australia, Dept Med & Pharmacol, Perth, WA, Australia
[12] Univ Torino, Acad Rheumatol Ctr, Turin, Italy
[13] Charles Univ Prague, Fac Med 1, Rheumatol, Prague, Czech Republic
[14] Med Ctr Rheumatol Berlin Buch, Immanuel Krankenhaus Berlin, Berlin, Germany
[15] Marmara Univ, Hlth Management, Sch Hlth Sci, Istanbul, Turkey
[16] Reumaklin Lelystad, Rheumatol, Lelystad, Netherlands