[1] Sint Maartensklin, Dept Rheumatol, Nijmegen, Netherlands
[2] Univ Leeds, Devis Rheumatol, Leeds, W Yorkshire, England
[3] NIHR Leeds Musculoskeletal Biomed Res Unit, Leeds, W Yorkshire, England
[4] Univ Florence, Scleroderma Ulcer Care Unit, Devis Rheumatol, Dept Biomed, Florence, Italy
[5] Med Univ Vienna, Dept Rheumatol, Vienna, Austria
[6] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden
[7] Univ Ghent, Fac Med & Hlth Sci, Dept Internal Med, B-9000 Ghent, Belgium
[8] Federat European Scleroderma Associat FESCA Aisbl, Tournai, Belgium
[9] Private Practice Phys Therapy Croatian Soc Patien, Zagreb, Croatia
[10] Ghent Univ Hosp, Dept Rheumatol, Ghent, Belgium