1. Department of Immunology, School of Medicine and
2. Services of Endocrinology, Immunology and Molecular Biology Unit, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, 28006 Madrid, Spain; and
3. Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
4. Research Center of Health Sciences and Biomedicine, Universidad Autónoma de San Luis Potosí, 78210 S.L.P., Mexico;