[1] Karolinska Inst, Dept Med Solna, Div Rheumatol, S-17176 Stockholm, Sweden
[2] Karolinska Univ Hosp, Dept Gastroenterol Dermatol & Rheumatol, Stockholm, Sweden
[3] Orebro Univ, Fac Med & Hlth, Dept Rheumatol, Orebro, Sweden
[4] Univ Hosp Geneva, Dept Med, Div Rheumatol, Geneva, Switzerland
[5] Univ Geneva, Fac Med, Geneva, Switzerland
[6] Hop Univ Strasbourg, Ctr Natl Reference RESO, Dept Rheumatol, INSERM UMR S 1109, S 1109, Strasbourg, France
[7] Univ Zurich, Univ Hosp Zurich, Dept Rheumatol, Zurich, Switzerland
[8] Univ Debrecen, Fac Med, Dept Rheumatol, Debrecen, Hungary
[9] Sint Maartensklin, Dept Res, Nijmegen, Netherlands
[10] Radboud Univ Nijmegen, Dept Rheumatol, Med Ctr, Nijmegen, Netherlands
[11] Federat European Scleroderma Assoc FESCA, Brussels, Belgium
[12] Univ Basel, Inst Nursing Sci, Fac Med, Basel, Switzerland
[13] ASL3, Rheumatol Unit, Dept Med Specialties, Genoa, Italy
[14] Arthrit Act, London, England
[15] Sheffield Hallam Univ, Coll Hlth Wellbeing & Life Sci, Dept Nursing & Midwifery, Sheffield, England
[16] Univ West England, Sch Hlth & Social Wellbeing, Bristol, England
[17] Univ New Mexico, Sch Med, Occupat Therapy Grad Program, Albuquerque, NM USA
[18] Univ Leeds, Leeds Inst Rheumat & Musculoskeletal Med, Leeds, England
[19] Med Univ Vienna, Ctr Med Stat Informat & Intelligent Syst, Sect Outcomes Res, Vienna, Austria
[20] Ludwig Boltzmann Inst Arthrit & Rehabil, Vienna, Austria
[21] Karolinska Univ Hosp, Dept Occupat Therapy & Physiotherapy, Stockholm, Sweden
[22] Swedish Rheumatism Assoc, Stockholm, Sweden
[23] Diakonhjemmet Hosp, Ctr Treatment Rheumat & Musculoskeletal Dis, Oslo, Norway
[24] Univ Pecs, Dept Rheumatol & Immunol, Med Sch, Pecs, Hungary
[25] Orebro Univ, Sch Hlth Sci, Orebro, Sweden
[26] Katholieke Univ Leuven, Skeletal Biol & Engn Res Ctr, Leuven, Belgium
[27] Karolinska Inst, Div Physiotherapy, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden