1. Rheumatology Division, Hospital de La Princesa, IIS-Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain
2. Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain
3. Department of Medicine, University of Cantabria, Santander, Spain
4. Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa