title: Sociodemographic characteristics of SMNG affiliates.
authors.affiliation: Centro de Estudios Económicos y Sociales en Salud, Hospital Infantil de México Federico Gómez, México, DF, México.
authors.forename: Mirna
authors.initials: M
authors.lastname: Hebrero-Martínez
authors.forename: Rita
authors.initials: R
authors.lastname: Velázquez Lerma
authors.forename: Clara Mantilla
authors.initials: CM
authors.lastname: Trollé
authors.forename: Ricardo
authors.initials: R
authors.lastname: Pérez-Cuevas
authors.forename: Onofre
authors.initials: O
authors.lastname: Muñoz
mesh_terms: D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007348:Insurance, Health / Q000706:statistics & numerical data*; D008297:Male; D008800:Mexico; D012959:Socioeconomic Factors; D019472:Universal Health Insurance / Q000706:statistics & numerical data*