1 Professor of Medicine, University of Cantabria, Director Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, IDIVAL; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, Santander, Spain; miguelaggay@hotmail.com.
2 Rheumatology Division, Hospital de la Princesa, IIS-IP, Universidad Autónoma, Madrid, Spain;
3 Professor of Epidemiology and Computational Biology, School of Medicine, University of Cantabria, CIBER Epidemiología y Salud Pública (CIBERESP), IDIVAL, Santander, Spain.