[1] Ctr Hosp & Univ Coimbra, Rheumatol, Coimbra, Portugal
[2] Ctr Hosp Baixo Vouga, Rheumatol, Aveiro, Portugal
[3] Ctr Hosp Leiria, Rheumatol, Leiria, Portugal
[4] Univ Beira Interior, Fac Hlth Sci, Covilha, Portugal
[5] Ctr Hosp Tras Os Montes Alto Douro, Rheumatol, Vila Real, Portugal
[6] Univ Nova Lisboa, Comprehens Hlth Res Ctr, Lisbon, Portugal
[7] Hosp Nelio Mendonca, Rheumatol, Funchal, Portugal
[8] Hosp Braga, Rheumatol, Braga, Portugal
[9] Ctr Hosp Lisboa Ocidental, Rheumatol, Lisbon, Portugal
[10] Univ Coimbra, Fac Med, Coimbra, Portugal
[11] CHU Algarve, Rheumatol, Faro, Portugal
[12] Ctr Hosp Vila Nova De Gaia Espinho, Rheumatol, Vila Nova De Gaia, Portugal
[13] Unidade Local Saude Guarda, Rheumatol, Guarda, Portugal