1 Rheumatology Division and Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander; University of Cantabria, Santander, Spain; and University of the Witwatersrand, Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, South Africa. miguelaggay@hotmail.com.
2 Rheumatology Division and Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain.
3 Division of Rheumatology, Hospital Universitario de la Princesa, IIS-Princesa, Madrid; and Cátedra UAM-ROCHE, Universidad Autónoma de Madrid (UAM), Madrid, Spain.