[1] IDIVAL, Res Grp Genet Epidemiol & Atherosclerosis Syst Di, Santander, Spain
[2] Hosp Univ Marques de Valdecilla, Dept Rheumatol, Santander, Spain
[3] Hosp Univ Marques de Valdecilla, IDIVAL, Santander, Spain
[4] Hosp Univ La Princesa, Div Rheumatol, IIS Princesa, Madrid, Spain
[5] Complejo Asistencial Univ Leon, Le on, Spain
[6] Hosp Gen Alicante, Alicante, Spain
[7] Hosp Gen Univ Alicante, Alicante, Spain
[8] Hosp Univ Bellvitge, Dept Rheumatol, Barcelona, Spain
[9] Hosp Univ Navarra, Pamplona, Spain
[10] Hosp Univ Donostia, Donostia San Sebastian, Spain
[11] Complejo H Univ A Coruna, La Coruna, Spain
[12] Complexo Hosp Univ Vigo, Vigo, Spain
[13] Hosp Sierrallana, Torrelavega, Spain
[14] Hosp Nuestra Senora Candelaria, Tenerife, Spain
[15] Hosp Valle De Hebron, Barcelona, Spain
[16] Hosp San Cecilio, Granada, Spain
[17] Hosp Virgen del Rocio, Seville, Spain
[18] San Juan Alicante, Alicante, Spain
[19] Agencia Valenciana Salud, Alicante, Spain
[20] Hosp Univ Virgen Del Rocio, Seville, Spain
[21] Hosp Univ La Paz, Madrid, Spain
[22] Hosp Univ Marques de Valdecilla, Santander, Spain
[23] Hosp Clin Univ Virgen de la Arrixaca, Murcia, Spain
[24] Hosp Univ 12 Octubre, Madrid, Spain
[25] Complejo Hosp Univ Ourense, Santiago De Compostela, Spain
[26] Hosp Virgen de las Nieves, Madrid, Spain
[27] Complexo Hosp Univ, Pontevedra, Spain
[28] Basurto Univ Hosp, Bilbao, Spain
[29] Hosp Univ Elda, Alicante, Spain
[30] Hosp Univ Canarias Spain, Div Rheumatol, Santa Cruz De Tenerife, Spain
[31] Hosp Univ Salamanca, Salamanca, Spain
[32] Hosp Reg Univ Malaga, Malaga, Spain
[33] Hosp Parc Tauli, Sabadell, Spain
[34] Hosp Parc Tauli, Barcelona, Spain
[35] Hosp San Agustin, Aviles, Spain
[36] Complejo Hosp Navarra, Pamplona, Spain
[37] Hosp Gen Univ Gregorio Maranon, Madrid, Spain
[38] Hosp Araba, Araba, Spain
[39] Hosp Puerta de Hierro, Madrid, Spain
[40] Hosp Arnau Vilanova, Valencia, Spain
[41] Hosp San Pedro, Logrono, Spain
[42] Hosp Univ San Cecilio, Granada, Spain
[43] Hosp Univ Castellon, Valencia, Spain
[44] Hosp Univ La Fe, Valencia, Spain
[45] Hosp Doctor Negrin, Gran Canaria, Spain
[46] Completo Asistencial Palencia, Palencia, Spain
[47] Univ Cantabria, Dept Med & Psychiat, Santander, Spain
[48] Hosp Univ Marques de Valdecilla, Div Rheumatol, Santander, Spain
[49] IDIVAL, Res Grp Genet Epidemiol & Atherosclerosis Syst Di, Santander, Spain
[50] Univ Witwatersrand, Sch Physiol, Cardiovasc Pathophysiol & Genom Res Unit, Fac Hlth Sci, Johannesburg, South Africa