title: Introduction.
authors.affiliation: Health Initiative of the Americas, School of Public Health, University of California, Berkeley, US.
authors.forename: Xóchitl
authors.initials: X
authors.lastname: Castañeda
authors.affiliation: Dirección de Salud Migrante, Secretaría de Salud, México.
authors.forename: Gudelia
authors.initials: G
authors.lastname: Rangel
authors.affiliation: Dirección de Investigación Científica Básica, Consejo Nacional de Ciencia y Tecnología, México.
authors.forename: Luis Humberto
authors.initials: LH
authors.lastname: Fabila
authors.affiliation: Research and Special Projects, College of Health Sciences, The University of Texas at El Paso, EUA.
authors.forename: João B
authors.initials: JB
authors.lastname: Ferreira-Pinto
mesh_terms: D004641:Emigration and Immigration; D006297:Health Services Accessibility; D006801:Humans; D008800:Mexico / Q000208:ethnology; D054525:Minority Health; D014481:United States