[1] Hospital San Cecilio,Systemic Autoimmune Diseases Unit
[2] Hospital Torrecárdenas,Systemic Autoimmune Diseases Unit
[3] Hospital Virgen del Rocío,Collagenosis and Pulmonary Hypertension Unit
[4] Hospital Virgen de las Nieves,Systemic Autoimmune Diseases Unit
[5] Hospital Carlos Haya,Systemic Autoimmune Diseases Unit
[6] Hospital Juan Ramón Jiménez,Systemic Autoimmune Diseases Unit