1. Department of Immunology, School of Medicine, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
2. Research Center of Health Sciences and Biomedicine, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
3. Services of Endocrinology, Immunology and Molecular Biology Unit, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Madrid, Spain