[1] Ctr Hosp & Univ Coimbra, Rheumatol Dept, Coimbra, Portugal
[2] Univ Coimbra, Fac Med, Coimbra, Portugal
[3] Univ Leeds, Leeds Inst Rheumat & Musculoskeletal Med, Leeds, England
[4] Nursing Sch Lisbon ESEL, Nursing Res Innovat & Dev Ctr Lisbon CIDNUR, Lisbon, Portugal
[5] Karolinska Inst, Dept Med Solna, Div Rheumatol, Stockholm, Sweden
[6] Karolinska Univ Hosp, Dept Gastroenterol Dermatol & Rheumatol, Stockholm, Sweden
[7] Orebro Univ, Fac Med & Hlth, Dept Rheumatol, Orebro, Sweden
[8] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden