[1] Hosp Univ Princesa, Div Rheumatol, Madrid, Spain
[2] Spanish Soc Rheumatol, Res Unit, Madrid, Spain
[3] Hosp Locus Augusti, Div Cardiol, Lugo, Spain
[4] Univ Cantabria, Sch Med, Div Epidemiol & Computat Biol, Santander, Spain
[5] CIBERESP, Santander, Spain
[6] Univ La Laguna, Sch Med, Tenerife, Spain
[7] Hosp Univ Canarias, Div Rheumatol, Tenerife, Spain
[8] Hosp Univ Marques de Valdecilla, Div Rheumatol, Santander, Spain
[9] IDIVAL, Div Rheumatol, Epidemiol Genet & Atherosclerosis Res Grp Syst In, Santander, Spain