1 Department of Rheumatology, University Hospital "Dr. Eleuterio Gonzalez", Universidad Autónoma de Nuevo León, Av. Gonzalitos 235 nte, Col. Mitras Centro, 64460, Monterrey, Mexico.
2 Department of Rheumatology, University Hospital "Dr. Eleuterio Gonzalez", Universidad Autónoma de Nuevo León, Av. Gonzalitos 235 nte, Col. Mitras Centro, 64460, Monterrey, Mexico. [email protected].