title: [Cross-sectional surveys].
authors: Dirección de Epidemiología, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública Cuernavaca, Morelos, México. bhernand@insp3.insp.mx
authors: B
authors: B
authors: Hernández
authors: H E
authors: HE
authors: Velasco-Mondragón
mesh_terms: D000704:Analysis of Variance; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D004989:Ethics; D012107:Research Design; D011795:Surveys and Questionnaires