[1] Hospital Universitario San Cecilio,Systemic Autoimmune Diseases Unit
[2] Hospital VallD’Hebron,Internal Medicine Department
[3] Corporación Sanitaria Universitaria ParcTaulí,Internal Medicine Department
[4] Hospital Clinic,Department of Autoimmune Diseases, Institut Clinic de Medicina I Dermatologia
[5] Hospital Universitario Central de Asturias,Internal Medicine Department
[6] Hospital de Cruces,Internal Medicine Department
[7] Hospital Universitario de Bellvitge,Internal Medicine Department
[8] Complejo Hospitalario Universitario de Vigo,Internal Medicine Department
[9] Hospital La Paz,Internal Medicine Department
[10] Hospital de Cabueñes,Internal Medicine Department
[11] Hospital Universitari Mútua Terrassa,Internal Medicine Department
[12] Hospital Clínico Universitario Lozano Blesa,Internal Medicine Department
[13] Consorci Hospitalari de Vic,Internal Medicine Department