1. Rheumatology Division, Hospital de La Princesa, IIS-Princesa, c/ Diego de Leon 62; 28006 Madrid, Universidad Autonoma de Madrid (UAM), Madrid, Spain
2. Division of Cardiology, Hospital Lucus Augusti, c/ Dr. Ulises Romero 1; 27003 Lugo, Spain
3. University of Cantabria, Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, IDIVAL, Rheumatology Division, Hospital Universitario Marques de Valdecilla, Avda. de Valdecilla, s/n; 39008, Santander, Spain